Zhe Jay Chen, PhD, FAAPM
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Research Summary
Radiation oncology is a technology-driven medical specialty. It utilizes high-energy photons and charged particles to destroy cancer cells inside human body. The goal of radiation therapy is to maximize radiation dose deliverable to the tumor while minimizing collateral damages to the nearby healthy tissues and critical organs. A successful administration of radiation therapy requires good understanding of the dose-deposition properties of ionizing radiation as well as the technical pitfalls involved in the planning, delivery and evaluation of radiation treatments, in addition to making a correct diagnosis and understanding the basic cancer biology. My research has focused on the following three main areas: 1) Developing radiation dosimetry and quality assurance tools to improve the accuracy and efficacy of radiation radiation; 2) Developing image-guidance strategies and tools for effective implementation of invidualized adaptive radiotherapy; and 3) Radiobiological modeling of human tissue dose-response for designing new and improved radiation therapy treatment strategies.
Extensive Research Description
An example of my research in basic radiation dosimetry involved the determination of dose rate constant (DRC) for radioactive sources used in interstitial brachytherapy. The DRC is a fundamental quantity that links the intrinsic dosimetry properties of a radioactive source to the proper fulfillment of prescription dose in patient dosimetry. An accurate determination of DRC has been regarded as one of the most important tasks in characterizing the basic properties of radioactive sources. However, accurate determination of DRC for the sources emitting photons of less than 50 keV has remained a challenge in radiation dosimetry because of the lack of a suitable absolute dosimeter for accurate measurement of doses near the source. Existing experimental techniques have large overall uncertainties on the order of 8-10% at one standard deviation and 15% at the 95% confidence level.
We have developed a general formalism for DRC that permitted detailed elucidation of the general properties underlying the determination of DRC. Based on this theoretical finding, we have subsequently developed a new photon spectrometry technique for accurate determination of the DRC of low-energy interstitial brachytherapy sources. This new technique eliminated many of the difficulties associated with the existing experimental techniques and has provided new and independent determinations of DRC for over twenty low-energy brachytherapy source models. Its application has led to the discovery of a 15% discrepancy in the DRC reported for a newly marketed cesium-131 source and has helped resolve a large discrepancy in the DRCs reported in literature for a novel polymer-encapsulated palladium-103 source. The photon spectrometry technique is efficient and robust. We are developing it into a national resource for DRC determination and for periodic quality assurance check of DRC.
An example of my research work in treatment plan optimization and evaluation involved the derivation of a new radiobiological formalism for biologically effective dose (BED) of permanent interstitial brachytherapy (PIB) using sources of different decay half-lives. In PIB, the cancer cells are subjected to continuous photon irradiation. Because tumor cell repopulation and sub-lethal damage repair occur simultaneously during dose delivery, the net cell kill and therefore the clinical efficacy of PIB depend not only on the delivered dose but also on the interplay between the temporal patterns of dose delivery and cellular kinetics.
The BED formula captures this interplay and has enabled systematic evaluation of the potential clinical impacts of using mixed sources on cancers presenting different biological properties. This formalism has also enabled us to systematically examine the radiobiological effects of prostate edema in PIB for early stage prostate cancer and many of the theoretical issues related to the design of an effective dose compensation approach for edema-induced dose deficits.
This latter application has provided some of the preliminary data for a R01 research project currently funded by NIH since September 2008 (R01CA134627-01 Prostate Edema in Permanent Interstitial Brachytherapy, PI: Zhe Chen, Ph.D). The R01 project aims to quantitatively characterize the dosimetric and radiobiologic effects of prostate edema and to develop effective therapeutic interventions so that the efficacy of PIB can be optimized for each individual prostate cancer patient.
Other examples of my research work have dealt with clinical dosimetry and quality assurance for radiation therapy techniques ranging from intensity-modulated radiation therapy (IMRT), total-skin electron therapy (TSET) for cultaneous T-cell lymphoma, total-body irradiation (TBI) for bone marrow transplant and image guidance in the planning, delivery and evaluation of radiation therapy.
- Optically stimulated luminescence dosimetry for in vivo verification of total-body irradiation (TBI) for bone marrow transplant
- Intervention strategies for effective management of edema-induced dose variations in permanent interstitial brachytherapy for prostate cancer
- Photon spectrometry for dosimetric characterization of low energy photon-emitting radioactive sources in interstitial brachytherapy
- Quantifying and managing the dosimetric effects of respiratory motion on image-guided stereotactic body radiosurgery for inoperable lung tumors
- Image-guided adaptive radiotherapy for prostate cancer
Coauthors
Research Interests
Brachytherapy; Dose-Response Relationship, Radiation; Electrons; Gamma Rays; Radiotherapy; Radiotherapy Planning, Computer-Assisted; X-Rays; Photons; Radiotherapy, Intensity-Modulated
Public Health Interests
Cancer; Environmental Health; Modeling
Selected Publications
- Characterization of GafchromicTM EBT4 film with clinical kV/MV photons and MeV electronsGuan F, Chen H, Draeger E, Li Y, Aydin R, Tien C, Chen Z. Characterization of GafchromicTM EBT4 film with clinical kV/MV photons and MeV electrons Precision Radiation Oncology 2023, 7: 84-91. DOI: 10.1002/pro6.1204.
- Radiobiological evaluation of the stepping-source effect in single-fraction monotherapy high-dose-rate prostate brachytherapyTien C, Chen Z. Radiobiological evaluation of the stepping-source effect in single-fraction monotherapy high-dose-rate prostate brachytherapy Brachytherapy 2023 PMID: 37263898, DOI: 10.1016/j.brachy.2023.03.003.
- Dosimetric response of Gafchromic™ EBT‐XD film to therapeutic protonsGuan F, Wang X, Yang M, Draeger E, Han D, Iga K, Guo F, Perles L, Li Y, Sahoo N, Mohan R, Chen Z. Dosimetric response of Gafchromic™ EBT‐XD film to therapeutic protons Precision Radiation Oncology 2023, 7: 15-26. DOI: 10.1002/pro6.1187.
- Dose prescription and reporting in stereotactic body radiotherapy: A multi-institutional studyDas I, Yadav P, Andersen A, Chen Z, Huang L, Langer M, Lee C, Li L, Popple R, Rice R, Schiff P, Zhu T, Abazeed M. Dose prescription and reporting in stereotactic body radiotherapy: A multi-institutional study Radiotherapy And Oncology 2023, 182: 109571. PMID: 36822361, PMCID: PMC10121952, DOI: 10.1016/j.radonc.2023.109571.
- Preliminary dosimetric comparison between fixed and rotating source stereotactic radiosurgery systemsDraeger E, Chen Z, Hansen J, Chiang V, Tien C. Preliminary dosimetric comparison between fixed and rotating source stereotactic radiosurgery systems Journal Of Applied Clinical Medical Physics 2023, 24: e13907. PMID: 36660774, PMCID: PMC10161057, DOI: 10.1002/acm2.13907.
- Frequency of errors in the transfer of treatment parameters from the treatment planning system to the oncology information system in a multi‐vendor environmentDonahue W, Draeger E, Han D, Chen Z. Frequency of errors in the transfer of treatment parameters from the treatment planning system to the oncology information system in a multi‐vendor environment Journal Of Applied Clinical Medical Physics 2022, 24: e13868. PMID: 36527239, PMCID: PMC10113690, DOI: 10.1002/acm2.13868.
- PHSOR05 Presentation Time: 12:50 PM The Effect of Quantum Noise on a Novel Multilateration-Based Brachytherapy Source Localization ApproachJensen P, Tien C, Chen Z. PHSOR05 Presentation Time: 12:50 PM The Effect of Quantum Noise on a Novel Multilateration-Based Brachytherapy Source Localization Approach Brachytherapy 2022, 21: s25-s26. DOI: 10.1016/j.brachy.2022.09.023.
- PHSPP04 Presentation Time: 3:00 PM The Impact of Sublethal Damage Repair on Biological Dose for a Stepping-Source Brachytherapy Delivery in a Single-Fraction Prostate TreatmentTien C, Donahue W, Giles D, Chen Z. PHSPP04 Presentation Time: 3:00 PM The Impact of Sublethal Damage Repair on Biological Dose for a Stepping-Source Brachytherapy Delivery in a Single-Fraction Prostate Treatment Brachytherapy 2022, 21: s32-s33. DOI: 10.1016/j.brachy.2022.09.034.
- A small footprint couch‐top support device for image‐guided radiotherapy of heavy patientsChen H, Morley K, Rodriguez R, Draeger E, Hassan M, Chen Z. A small footprint couch‐top support device for image‐guided radiotherapy of heavy patients Journal Of Applied Clinical Medical Physics 2022, 23: e13788. PMID: 36267043, PMCID: PMC9797158, DOI: 10.1002/acm2.13788.
- Skin dose distributions between Stanford and rotational techniques in total skin electron therapy (TSET)Ding G, Chen Z, Zhong W, Zhu T. Skin dose distributions between Stanford and rotational techniques in total skin electron therapy (TSET) Medical Physics 2022, 49: 6646-6653. PMID: 35972019, DOI: 10.1002/mp.15907.
- Dosimetric study of Varian Universal Multi-Channel Cylinder System for High-Dose-Rate 192Ir BrachytherapyTien CJ, Damast S, Chen ZJ. Dosimetric study of Varian Universal Multi-Channel Cylinder System for High-Dose-Rate 192Ir Brachytherapy Brachytherapy 2022, 21: 244-254. PMID: 34996715, DOI: 10.1016/j.brachy.2021.11.001.
- PO03 A Novel Design in Peripheral Channels of a Brachytherapy Multichannel Applicator Demonstrates Significant Differences in Dose to Surrounding VolumeTien C, Damast S, Young M, Kaur M, Kim J, Chen Z. PO03 A Novel Design in Peripheral Channels of a Brachytherapy Multichannel Applicator Demonstrates Significant Differences in Dose to Surrounding Volume Brachytherapy 2021, 20: s56-s57. DOI: 10.1016/j.brachy.2021.06.091.
- Clinically-implementable template plans for multidwell treatments using Leipzig-style applicators in 192Ir surface brachytherapyDraeger E, Pinkham DW, Chen ZJ, Tien CJ. Clinically-implementable template plans for multidwell treatments using Leipzig-style applicators in 192Ir surface brachytherapy Brachytherapy 2020, 20: 401-409. PMID: 33288488, DOI: 10.1016/j.brachy.2020.09.019.
- Strategies to Expand Viable Treatment Area in Tungsten Shell Applicators for Surface BrachytherapyDraeger E, Pinkham D, Chen Z, Tien C. Strategies to Expand Viable Treatment Area in Tungsten Shell Applicators for Surface Brachytherapy International Journal Of Radiation Oncology • Biology • Physics 2020, 108: e339. DOI: 10.1016/j.ijrobp.2020.07.809.
- Associating dose–volume characteristics with theoretical radiobiological metrics for rapid Gamma Knife stereotactic radiosurgery plan evaluationTien CJ, Bond JE, Chen Z. Associating dose–volume characteristics with theoretical radiobiological metrics for rapid Gamma Knife stereotactic radiosurgery plan evaluation Journal Of Applied Clinical Medical Physics 2020, 21: 132-140. PMID: 32910543, PMCID: PMC7592963, DOI: 10.1002/acm2.13018.
- A general-purpose Monte Carlo particle transport code based on inverse transform sampling for radiotherapy dose calculationLiang Y, Muhammad W, Hart GR, Nartowt BJ, Chen ZJ, Yu JB, Roberts KB, Duncan JS, Deng J. A general-purpose Monte Carlo particle transport code based on inverse transform sampling for radiotherapy dose calculation Scientific Reports 2020, 10: 9808. PMID: 32555530, PMCID: PMC7300009, DOI: 10.1038/s41598-020-66844-7.
- A prototype open-ended multichannel intracavitary-interstitial hybrid applicator for gynecological high-dose-rate brachytherapyTien CJ, Chen Z. A prototype open-ended multichannel intracavitary-interstitial hybrid applicator for gynecological high-dose-rate brachytherapy Radiological Physics And Technology 2020, 13: 187-194. PMID: 32424632, DOI: 10.1007/s12194-020-00567-2.
- Feasibility of using multiple-dwell positions in 192Ir Leipzig-style brachytherapy surface applicators to expand target coverage and clinical applicationTien CJ, Pinkham DW, Chen ZJ. Feasibility of using multiple-dwell positions in 192Ir Leipzig-style brachytherapy surface applicators to expand target coverage and clinical application Brachytherapy 2020, 19: 532-543. PMID: 32327342, DOI: 10.1016/j.brachy.2020.03.002.
- Brachytherapy Future Directions.Cunha JAM, Flynn R, Bélanger C, Callaghan C, Kim Y, Jia X, Chen Z, Beaulieu L. Brachytherapy Future Directions. Seminars In Radiation Oncology 2020, 30: 94-106. PMID: 31727305, DOI: 10.1016/j.semradonc.2019.09.001.
- Deployment and performance of model-based dose calculation algorithm in 192Ir shielded cylinder brachytherapyTien CJ, Chen ZJ. Deployment and performance of model-based dose calculation algorithm in 192Ir shielded cylinder brachytherapy Brachytherapy 2019, 18: 883-889. PMID: 31444132, DOI: 10.1016/j.brachy.2019.07.006.
- High-dose-rate brachytherapy as monotherapy for prostate cancer: The impact of cellular repair and source decayTien CJ, Carlson DJ, Nath R, Chen ZJ. High-dose-rate brachytherapy as monotherapy for prostate cancer: The impact of cellular repair and source decay Brachytherapy 2019, 18: 701-710. PMID: 31109870, DOI: 10.1016/j.brachy.2019.04.005.
- The Theoretical Benefits of a 15 Ci Ir-192 Source for HDR BrachytherapyTien C, Chen Z, Damast S, Young M, Carlson D. The Theoretical Benefits of a 15 Ci Ir-192 Source for HDR Brachytherapy Brachytherapy 2019, 18: s25. DOI: 10.1016/j.brachy.2019.04.054.
- Feasibility of Using Multiple Positions in Leipzig Applicator to Increase Target CoverageTien C, Chen Z. Feasibility of Using Multiple Positions in Leipzig Applicator to Increase Target Coverage Brachytherapy 2019, 18: s27-s28. DOI: 10.1016/j.brachy.2019.04.060.
- Producing Optimal Dose Distributions with a Novel “Virtual Ring” Applicator DesignTien C, Chen Z. Producing Optimal Dose Distributions with a Novel “Virtual Ring” Applicator Design Brachytherapy 2019, 18: s109-s110. DOI: 10.1016/j.brachy.2019.04.238.
- Is MR-Exclusive Brachytherapy Planning Feasible for Vaginal Cylinders with Stainless Steel Components?Tien C, Hoerner M, Damast S, Chen Z. Is MR-Exclusive Brachytherapy Planning Feasible for Vaginal Cylinders with Stainless Steel Components? Brachytherapy 2019, 18: s112-s113. DOI: 10.1016/j.brachy.2019.04.243.
- Adaptive Imaging Versus Periodic Surveillance for Intrafraction Motion Management During Prostate Cancer RadiotherapyMa X, Yan H, Nath R, Chen Z, Li H, Liu W. Adaptive Imaging Versus Periodic Surveillance for Intrafraction Motion Management During Prostate Cancer Radiotherapy Technology In Cancer Research & Treatment 2019, 18: 1533033819844489. PMID: 31177934, PMCID: PMC6558533, DOI: 10.1177/1533033819844489.
- Novel Eye Plaque Designs for Brachytherapy of Iris and Ciliary Body Melanoma and the First Clinical ApplicationLiu W, Kim JM, Young BK, Nath R, Chen Z, Decker RH, Astrahan MA, Pointdujour-Lim R. Novel Eye Plaque Designs for Brachytherapy of Iris and Ciliary Body Melanoma and the First Clinical Application Ocular Oncology And Pathology 2018, 5: 220-228. PMID: 31049331, PMCID: PMC6489066, DOI: 10.1159/000493269.
- Monte Carlo dosimetry modeling of focused kV x‐ray radiotherapy of eye diseases with potential nanoparticle dose enhancementYan H, Ma X, Sun W, Mendez S, Stryker S, Starr‐Baier S, Delliturri G, Zhu D, Nath R, Chen Z, Roberts K, MacDonald CA, Liu W. Monte Carlo dosimetry modeling of focused kV x‐ray radiotherapy of eye diseases with potential nanoparticle dose enhancement Medical Physics 2018, 45: 4720-4733. PMID: 30133705, DOI: 10.1002/mp.13144.
- Extended duration of dilator use beyond 1 year may reduce vaginal stenosis after intravaginal high-dose-rate brachytherapyStahl JM, Qian JM, Tien CJ, Carlson DJ, Chen Z, Ratner ES, Park HS, Damast S. Extended duration of dilator use beyond 1 year may reduce vaginal stenosis after intravaginal high-dose-rate brachytherapy Supportive Care In Cancer 2018, 27: 1425-1433. PMID: 30187220, DOI: 10.1007/s00520-018-4441-5.
- First Clinical Application of a Novel Eye Plaque -EP2132- Designed for Iris Tumor TreatmentLiu W, Astrahan M, Young B, Kim J, Chen Z, Nath R, Lim R. First Clinical Application of a Novel Eye Plaque -EP2132- Designed for Iris Tumor Treatment Brachytherapy 2018, 17: s31. DOI: 10.1016/j.brachy.2018.04.041.
- Dosimetric Implications of Air within Channels of Brachytherapy ApplicatorsPetrongolo M, Tien C, Chen Z. Dosimetric Implications of Air within Channels of Brachytherapy Applicators Brachytherapy 2018, 17: s127. DOI: 10.1016/j.brachy.2018.04.235.
- Ion Chamber-Based Quantification Oo Intra-lumen Source Sag in Varian Leipzig-style Cone with Gammamedplus-iX AfterloaderTien C, Chen Z. Ion Chamber-Based Quantification Oo Intra-lumen Source Sag in Varian Leipzig-style Cone with Gammamedplus-iX Afterloader Brachytherapy 2018, 17: s130-s131. DOI: 10.1016/j.brachy.2018.04.242.
- Early Experience with Brachytherapy Model-Based Dose Calculation Algorithm: Commissioning and Retrospective Comparison with Historical TemplateTien C, Damast S, Picone J, Young M, Chen Z. Early Experience with Brachytherapy Model-Based Dose Calculation Algorithm: Commissioning and Retrospective Comparison with Historical Template Brachytherapy 2018, 17: s40-s41. DOI: 10.1016/j.brachy.2018.04.059.
- On the use of bolus for pacemaker dose measurement and reduction in radiation therapyYan H, Guo F, Zhu D, Stryker S, Trumpore S, Roberts K, Higgins S, Nath R, Chen Z, Liu W. On the use of bolus for pacemaker dose measurement and reduction in radiation therapy Journal Of Applied Clinical Medical Physics 2017, 19: 125-131. PMID: 29152840, PMCID: PMC5768029, DOI: 10.1002/acm2.12229.
- Dose-Volume Predictors of Esophagitis After Thoracic Stereotactic Body Radiation TherapyHarder EM, Chen Z, Park HS, Mancini BR, Decker RH. Dose-Volume Predictors of Esophagitis After Thoracic Stereotactic Body Radiation Therapy American Journal Of Clinical Oncology 2017, 40: 477-482. PMID: 26017483, DOI: 10.1097/coc.0000000000000195.
- Extended Duration of Dilator Use Beyond 1 Year May Reduce Vaginal Stenosis After Intravaginal High-Dose-Rate BrachytherapyStahl J, Qian J, Park H, Tien C, Young M, Ratner E, Carlson D, Chen Z, Damast S. Extended Duration of Dilator Use Beyond 1 Year May Reduce Vaginal Stenosis After Intravaginal High-Dose-Rate Brachytherapy International Journal Of Radiation Oncology • Biology • Physics 2017, 99: s228. DOI: 10.1016/j.ijrobp.2017.06.561.
- High-Dose-Rate Brachytherapy As Monotherapy for Prostate Cancer: A Meta-analysis of Biochemical Control Rates and Dose FractionationTien C, Chen Z, Carlson D. High-Dose-Rate Brachytherapy As Monotherapy for Prostate Cancer: A Meta-analysis of Biochemical Control Rates and Dose Fractionation International Journal Of Radiation Oncology • Biology • Physics 2017, 99: e621. DOI: 10.1016/j.ijrobp.2017.06.2099.
- Patterns of Dose Prescription and Recording in Stereotactic Body Radiation Therapy: A Multi-institutional StudyDas I, Andersen A, Bayliss A, Chen Z, Dimofte A, Huang L, Ai H, Langer M, Lee C, Popple R, Rice R, Schiff P, Zhu T. Patterns of Dose Prescription and Recording in Stereotactic Body Radiation Therapy: A Multi-institutional Study International Journal Of Radiation Oncology • Biology • Physics 2017, 99: s68-s69. DOI: 10.1016/j.ijrobp.2017.06.167.
- Local DNA Repair Inhibition for Sustained Radiosensitization of High-Grade GliomasKing AR, Corso CD, Chen EM, Song E, Bongiorni P, Chen Z, Sundaram RK, Bindra RS, Saltzman WM. Local DNA Repair Inhibition for Sustained Radiosensitization of High-Grade Gliomas Molecular Cancer Therapeutics 2017, 16: 1456-1469. PMID: 28566437, PMCID: PMC5545124, DOI: 10.1158/1535-7163.mct-16-0788.
- Incorporating patient-specific CT-based ophthalmic anatomy in modeling iodine-125 eye plaque brachytherapy dose distributionsTien CJ, Astrahan MA, Kim JM, Materin M, Chen Z, Nath R, Liu W. Incorporating patient-specific CT-based ophthalmic anatomy in modeling iodine-125 eye plaque brachytherapy dose distributions Brachytherapy 2017, 16: 1057-1064. PMID: 28778599, DOI: 10.1016/j.brachy.2017.06.014.
- HDR Monotherapy in Prostate Cancer: Radiobiological Considerations When Determining Biologically Effective Dose in Clinical TrialsTien C, Carlson D, Nath R, Chen Z. HDR Monotherapy in Prostate Cancer: Radiobiological Considerations When Determining Biologically Effective Dose in Clinical Trials Brachytherapy 2017, 16: s31. DOI: 10.1016/j.brachy.2017.04.038.
- Does Variable 192Ir Dose Rate Affect Vaginal Toxicity in High-Dose-Rate Brachytherapy?Tien C, Butkus M, Stahl J, Qian J, Chen Z, Damast S. Does Variable 192Ir Dose Rate Affect Vaginal Toxicity in High-Dose-Rate Brachytherapy? Brachytherapy 2017, 16: s76-s77. DOI: 10.1016/j.brachy.2017.04.139.
- Comparison of 2D and 3D modeled tumor motion estimation/prediction for dynamic tumor tracking during arc radiotherapyLiu W, Ma X, Yan H, Chen Z, Nath R, Li H. Comparison of 2D and 3D modeled tumor motion estimation/prediction for dynamic tumor tracking during arc radiotherapy Physics In Medicine And Biology 2017, 62: n168-n179. PMID: 28263949, DOI: 10.1088/1361-6560/aa64c8.
- State of dose prescription and compliance to international standard (ICRU-83) in intensity modulated radiation therapy among academic institutionsDas IJ, Andersen A, Chen Z, Dimofte A, Glatstein E, Hoisak J, Huang L, Langer MP, Lee C, Pacella M, Popple RA, Rice R, Smilowitz J, Sponseller P, Zhu T. State of dose prescription and compliance to international standard (ICRU-83) in intensity modulated radiation therapy among academic institutions Practical Radiation Oncology 2016, 7: e145-e155. PMID: 28274405, DOI: 10.1016/j.prro.2016.11.003.
- The American Society for Radiation Oncology's 2015 Core Physics Curriculum for Radiation Oncology ResidentsBurmeister J, Chen Z, Chetty IJ, Dieterich S, Doemer A, Dominello MM, Howell RM, McDermott P, Nalichowski A, Prisciandaro J, Ritter T, Smith C, Schreiber E, Shafman T, Sutlief S, Xiao Y. The American Society for Radiation Oncology's 2015 Core Physics Curriculum for Radiation Oncology Residents International Journal Of Radiation Oncology • Biology • Physics 2016, 95: 1298-1303. PMID: 27354135, DOI: 10.1016/j.ijrobp.2016.03.012.
- Pulmonary dose-volume predictors of radiation pneumonitis following stereotactic body radiation therapyHarder EM, Park HS, Chen Z, Decker RH. Pulmonary dose-volume predictors of radiation pneumonitis following stereotactic body radiation therapy Practical Radiation Oncology 2016, 6: e353-e359. PMID: 27156424, DOI: 10.1016/j.prro.2016.01.015.
- Pulmonary Dose Volume Predictors of Radiation Pneumonitis After Stereotactic Body Radiation TherapyHarder E, Park H, Chen Z, Decker R. Pulmonary Dose Volume Predictors of Radiation Pneumonitis After Stereotactic Body Radiation Therapy International Journal Of Radiation Oncology • Biology • Physics 2015, 93: e427. DOI: 10.1016/j.ijrobp.2015.07.1635.
- Nanoparticle Enhanced Focused Kv X-ray Radiation TherapyLiu W, MacDonald C, Abbas H, Nath R, Chen Z. Nanoparticle Enhanced Focused Kv X-ray Radiation Therapy International Journal Of Radiation Oncology • Biology • Physics 2015, 93: s146-s147. DOI: 10.1016/j.ijrobp.2015.07.348.
- Dose Prescription and Recording Variability in the Era of ICRU-83: A Multi-institutional StudyDas I, Andersen A, Chen Z, Dimofte A, Hoisak J, Huang L, Lee C, Pacella M, Popple R, Rice R, Smilowitz J, Sponseller P, Zhu T. Dose Prescription and Recording Variability in the Era of ICRU-83: A Multi-institutional Study International Journal Of Radiation Oncology • Biology • Physics 2015, 93: s42-s43. DOI: 10.1016/j.ijrobp.2015.07.103.
- Concomitant Imaging Dose and Cancer Risk in Image Guided Thoracic Radiation TherapyZhang Y, Wu H, Chen Z, Knisely JP, Nath R, Feng Z, Bao S, Deng J. Concomitant Imaging Dose and Cancer Risk in Image Guided Thoracic Radiation Therapy International Journal Of Radiation Oncology • Biology • Physics 2015, 93: 523-531. PMID: 26460994, DOI: 10.1016/j.ijrobp.2015.06.034.
- Dosimetric comparison of two arc-based stereotactic body radiotherapy techniques for early-stage lung cancer.Liu H, Ye J, Kim JJ, Deng J, Kaur MS, Chen ZJ. Dosimetric comparison of two arc-based stereotactic body radiotherapy techniques for early-stage lung cancer. Medical Dosimetry : Official Journal Of The American Association Of Medical Dosimetrists 2015, 40: 76-81. PMID: 25499078, DOI: 10.1016/j.meddos.2014.10.004.
- Dose-Volume Parameters for the Esophagus in Pulmonary SBRTHarder E, Chen Z, Park H, Mancini B, Decker R. Dose-Volume Parameters for the Esophagus in Pulmonary SBRT International Journal Of Radiation Oncology • Biology • Physics 2014, 90: s59-s60. DOI: 10.1016/j.ijrobp.2014.05.206.
- Personalized Quantification of Imaging Doses to Children and Adults Scanned by Standard Thoracic Cone Beam CT in Radiation TherapyZhang Y, Wu H, Chen Z, Knisely J, Nath R, Yue H, Feng Z, Bao S, Deng J. Personalized Quantification of Imaging Doses to Children and Adults Scanned by Standard Thoracic Cone Beam CT in Radiation Therapy International Journal Of Radiation Oncology • Biology • Physics 2014, 90: s76. DOI: 10.1016/j.ijrobp.2014.05.453.
- Optimized Prostate Intrafraction Motion Management IGRT Strategy for 3 mm MarginLiu W, Xie Y, Chu A, Chen Z, Nath R. Optimized Prostate Intrafraction Motion Management IGRT Strategy for 3 mm Margin International Journal Of Radiation Oncology • Biology • Physics 2014, 90: s846. DOI: 10.1016/j.ijrobp.2014.05.2424.
- Motion management in gastrointestinal cancersAbbas H, Chang B, Chen ZJ. Motion management in gastrointestinal cancers Journal Of Gastrointestinal Oncology 2014, 5: 223-35. PMID: 24982771, PMCID: PMC4074952, DOI: 10.3978/j.issn.2078-6891.2014.028.
- SU‐E‐T‐191: First Principle Calculation of Quantum Yield in Photodynamic TherapyAbolfath R, Guo F, Chen Z, Nath R. SU‐E‐T‐191: First Principle Calculation of Quantum Yield in Photodynamic Therapy Medical Physics 2014, 41: 266-266. DOI: 10.1118/1.4888521.
- SU‐E‐T‐518: Dosiemtric Impact of Patient Positioning Uncertainty in SBRT TreatmentsAbbas H, Abolfath R, Nath R, Chen Z. SU‐E‐T‐518: Dosiemtric Impact of Patient Positioning Uncertainty in SBRT Treatments Medical Physics 2014, 41: 346-346. DOI: 10.1118/1.4888851.
- A phase II trial of balloon-catheter partial breast brachytherapy optimization in the treatment of stage 0, I, and IIA breast carcinomaNath SK, Chen ZJ, Rowe BP, Blitzblau RC, Aneja S, Grube BJ, Horowitz NR, Weidhaas JB. A phase II trial of balloon-catheter partial breast brachytherapy optimization in the treatment of stage 0, I, and IIA breast carcinoma Journal Of Radiation Oncology 2014, 3: 371-378. PMID: 25485042, PMCID: PMC4254816, DOI: 10.1007/s13566-014-0153-8.
- Oncology scan--the vision of medical physics.Klein EE, Dogan N, Chen Z, Fiorino C. Oncology scan--the vision of medical physics. International Journal Of Radiation Oncology, Biology, Physics 2014, 88: 251-3. PMID: 24411972, DOI: 10.1016/j.ijrobp.2013.08.022.
- Monte Carlo Estimation of Dose to the Cardiac Implantable Electronic Devices From a kVCBCT System Used in Image Guided Radiation TherapyMing X, Feng Y, Chen Z, Zhang Y, Nath R, Deng J. Monte Carlo Estimation of Dose to the Cardiac Implantable Electronic Devices From a kVCBCT System Used in Image Guided Radiation Therapy International Journal Of Radiation Oncology • Biology • Physics 2013, 87: s152. DOI: 10.1016/j.ijrobp.2013.06.393.
- Dosimetric Impact of Treatment Couch on Volumetric Modulated Arc Therapy (VMAT)Ye J, Liu H, Kim J, Deng J, Chen Z. Dosimetric Impact of Treatment Couch on Volumetric Modulated Arc Therapy (VMAT) International Journal Of Radiation Oncology • Biology • Physics 2013, 87: s708-s709. DOI: 10.1016/j.ijrobp.2013.06.1877.
- Using Skin Dose Parameters Predicts Low Skin Toxicity in a Phase 2 Trial of Multiple Dwell Position Balloon-Based Brachytherapy for Partial Breast IrradiationNath S, Chen Z, Rowe B, Blitzblau R, Aneja S, Grube B, Horowitz N, Weidhaas J. Using Skin Dose Parameters Predicts Low Skin Toxicity in a Phase 2 Trial of Multiple Dwell Position Balloon-Based Brachytherapy for Partial Breast Irradiation International Journal Of Radiation Oncology • Biology • Physics 2013, 87: s213. DOI: 10.1016/j.ijrobp.2013.06.551.
- A molecular dynamics simulation of DNA damage induction by ionizing radiationAbolfath RM, Carlson DJ, Chen ZJ, Nath R. A molecular dynamics simulation of DNA damage induction by ionizing radiation Physics In Medicine And Biology 2013, 58: 7143-7157. PMID: 24052159, DOI: 10.1088/0031-9155/58/20/7143.
- Acute toxicity and risk of infection during total skin electron beam therapy for mycosis fungoidesLloyd S, Chen Z, Foss FM, Girardi M, Wilson LD. Acute toxicity and risk of infection during total skin electron beam therapy for mycosis fungoides Journal Of The American Academy Of Dermatology 2013, 69: 537-543. PMID: 23849563, DOI: 10.1016/j.jaad.2013.04.063.
- TH‐F‐105‐02: Molecular Dynamics Simulation of DNA Damage Induction by Ionizing RadiationAbolfath R, Carlson D, Chen Z, Nath R. TH‐F‐105‐02: Molecular Dynamics Simulation of DNA Damage Induction by Ionizing Radiation Medical Physics 2013, 40: 552-552. DOI: 10.1118/1.4815815.
- Prostate Edema Characterization Using Image Registration and PCAJiang Y, Zhai Y, Papademetris X, Roberts K, Nath R, Chen Z. Prostate Edema Characterization Using Image Registration and PCA 2013, 39: 1754-1757. DOI: 10.1007/978-3-642-29305-4_461.
- Kilo-Voltage Imaging Doses to Organs-at-Risk in CBCT-guided Breast Radiation TherapyDeng J, Chen Z, Knisely J, Nath R. Kilo-Voltage Imaging Doses to Organs-at-Risk in CBCT-guided Breast Radiation Therapy International Journal Of Radiation Oncology • Biology • Physics 2012, 84: s233-s234. DOI: 10.1016/j.ijrobp.2012.07.606.
- On the Use of Biologically Effective Dose (BED) and Iso-Effective Dose (IED) in Radiobiological Evaluations of Permanent Brachytherapy With Proliferating TumorsChen Z, Nath R. On the Use of Biologically Effective Dose (BED) and Iso-Effective Dose (IED) in Radiobiological Evaluations of Permanent Brachytherapy With Proliferating Tumors International Journal Of Radiation Oncology • Biology • Physics 2012, 84: s755. DOI: 10.1016/j.ijrobp.2012.07.2020.
- Oncology Scan—PhysicsKlein E, Chen Z, Chetty I, Dogan N. Oncology Scan—Physics International Journal Of Radiation Oncology • Biology • Physics 2012, 84: 871-873. DOI: 10.1016/j.ijrobp.2012.08.024.
- SU‐E‐T‐289: On the Use of a Diode Array for the Commissioning of Dynamically‐Wedged Asymmetric Fields Generated by Varian EDW's in the Pinnacle Treatment Planning SystemAhmad M, Liu W, Deng J, Nguyen K, Wu D, Chen Z, Moran M, Nath R. SU‐E‐T‐289: On the Use of a Diode Array for the Commissioning of Dynamically‐Wedged Asymmetric Fields Generated by Varian EDW's in the Pinnacle Treatment Planning System Medical Physics 2012, 39: 3770-3770. PMID: 28517261, DOI: 10.1118/1.4735357.
- SU‐E‐T‐112: Experimental Characterization of a Novel Thermal Reservoir for Consistent and Accurate Annealing of High‐Sensitivity TLDsDonahue W, Bongiorni P, Hearn R, Rodgers J, Nath R, Chen Z. SU‐E‐T‐112: Experimental Characterization of a Novel Thermal Reservoir for Consistent and Accurate Annealing of High‐Sensitivity TLDs Medical Physics 2012, 39: 3728-3729. PMID: 28517151, DOI: 10.1118/1.4735170.
- SU‐E‐T‐269: The Evaluation of Copper as an Alternative for Cerrobend Electron ShieldingChu A, Feng W, Ahmad M, Chen Z, Nath R. SU‐E‐T‐269: The Evaluation of Copper as an Alternative for Cerrobend Electron Shielding Medical Physics 2012, 39: 3765-3765. PMID: 28517300, DOI: 10.1118/1.4735336.
- SU‐E‐T‐92: on the Use of High‐Sensitivity Thermoluminescent Dosimeters (TLDs) for Dosimetric Characterization of Low‐Energy Brachytherapy SourcesChen Z, Bongiorni P, Donahue W, Hearn R, Rodgers J, Nath R. SU‐E‐T‐92: on the Use of High‐Sensitivity Thermoluminescent Dosimeters (TLDs) for Dosimetric Characterization of Low‐Energy Brachytherapy Sources Medical Physics 2012, 39: 3723-3723. PMID: 28517162, DOI: 10.1118/1.4735149.
- SU‐E‐T‐198: Patient Scheduling Monitor (PSM)‐A New Tool for Radiation Therapy Patient Scheduling and Workflow Management in an Increasingly Digital EnvironmentLiu H, Kim J, Chen Z. SU‐E‐T‐198: Patient Scheduling Monitor (PSM)‐A New Tool for Radiation Therapy Patient Scheduling and Workflow Management in an Increasingly Digital Environment Medical Physics 2012, 39: 3748-3748. PMID: 28517851, DOI: 10.1118/1.4735257.
- Experimental characterization of the dosimetric properties of a newly designed I-Seed model AgX100 125I interstitial brachytherapy sourceChen Z, Bongiorni P, Nath R. Experimental characterization of the dosimetric properties of a newly designed I-Seed model AgX100 125I interstitial brachytherapy source Brachytherapy 2011, 11: 476-482. PMID: 22104352, PMCID: PMC3330133, DOI: 10.1016/j.brachy.2011.08.009.
- Quality Assurance Comparison of Intensity Modulated Stereotactic Radiosurgery between Different Treatment Planning SystemsGuo F, Carlson D, Chen Z, Deng J, Picone J, Nath R. Quality Assurance Comparison of Intensity Modulated Stereotactic Radiosurgery between Different Treatment Planning Systems International Journal Of Radiation Oncology • Biology • Physics 2011, 81: s867. DOI: 10.1016/j.ijrobp.2011.06.1545.
- Improved Hippocampal-Sparing using an Asymmetric Conformal Arc Technique for Treatment of Pituitary LesionsTaylor B, Picone J, Kimmett J, Chen Z, Knisely J. Improved Hippocampal-Sparing using an Asymmetric Conformal Arc Technique for Treatment of Pituitary Lesions International Journal Of Radiation Oncology • Biology • Physics 2011, 81: s291-s292. DOI: 10.1016/j.ijrobp.2011.06.1763.
- The impact of prostate edema on cell survival and tumor control after permanent interstitial brachytherapy for early stage prostate cancersChen Z, Roberts K, Decker R, Pathare P, Rockwell S, Nath R. The impact of prostate edema on cell survival and tumor control after permanent interstitial brachytherapy for early stage prostate cancers Physics In Medicine And Biology 2011, 56: 4895-4912. PMID: 21772076, PMCID: PMC3154133, DOI: 10.1088/0031-9155/56/15/016.
- SU‐E‐T‐485: Clinical Evaluation of Inverse Planning Models and IMRT Delivery Systems in the Framework of AAPM TG‐119 ProtocolAhmad M, Liu W, Lund M, Moran M, Richards P, Wu D, Chen Z, Deng J, Nath R. SU‐E‐T‐485: Clinical Evaluation of Inverse Planning Models and IMRT Delivery Systems in the Framework of AAPM TG‐119 Protocol Medical Physics 2011, 38: 3600-3600. DOI: 10.1118/1.3612438.
- SU‐E‐T‐778: Application of Robust Fluence Approach in IMRT under Clinical Daily ShiftsFan Y, Chen Z, Nath R, Decker R. SU‐E‐T‐778: Application of Robust Fluence Approach in IMRT under Clinical Daily Shifts Medical Physics 2011, 38: 3670-3670. DOI: 10.1118/1.3612742.
- MO‐F‐BRB‐06: Experimental Characterization of the Dosimetric Properties of a Newly Designed I‐Seed Model AgX100 125I Interstitial Brachytherapy SourceChen Z, Bongiorni P, Nath R. MO‐F‐BRB‐06: Experimental Characterization of the Dosimetric Properties of a Newly Designed I‐Seed Model AgX100 125I Interstitial Brachytherapy Source Medical Physics 2011, 38: 3723-3723. DOI: 10.1118/1.3613007.
- MO‐G‐BRA‐01: Evaluation of Prostate Post‐Implant Dosimetry by Tracking Edema Resolution with Deformable Image RegistrationZhai Y, Jiang Y, Papademetris X, Roberts K, Nath R, Chen Z. MO‐G‐BRA‐01: Evaluation of Prostate Post‐Implant Dosimetry by Tracking Edema Resolution with Deformable Image Registration Medical Physics 2011, 38: 3733-3733. DOI: 10.1118/1.3613046.
- TH‐A‐220‐09: A Study of Prostate Edema Resolution Pattern by Principle Component AnalysisJiang Y, Zhai Y, Papademetris X, Roberts K, Pathare P, Nath R, Chen Z. TH‐A‐220‐09: A Study of Prostate Edema Resolution Pattern by Principle Component Analysis Medical Physics 2011, 38: 3847-3847. DOI: 10.1118/1.3613487.
- An integrated approach to segmentation and nonrigid registration for application in image-guided pelvic radiotherapyLu C, Chelikani S, Papademetris X, Knisely JP, Milosevic MF, Chen Z, Jaffray DA, Staib LH, Duncan JS. An integrated approach to segmentation and nonrigid registration for application in image-guided pelvic radiotherapy Medical Image Analysis 2011, 15: 772-785. PMID: 21646038, PMCID: PMC3164526, DOI: 10.1016/j.media.2011.05.010.
- Testicular Doses in Image-Guided Radiotherapy of Prostate CancerDeng J, Chen Z, Yu JB, Roberts KB, Peschel RE, Nath R. Testicular Doses in Image-Guided Radiotherapy of Prostate Cancer International Journal Of Radiation Oncology • Biology • Physics 2011, 82: e39-e47. PMID: 21489702, DOI: 10.1016/j.ijrobp.2011.01.071.
- A novel modified dynamic conformal arc technique for treatment of peripheral lung tumors using stereotactic body radiation therapyRoss CC, Kim JJ, Chen ZJ, Grew DJ, Chang BW, Decker RH. A novel modified dynamic conformal arc technique for treatment of peripheral lung tumors using stereotactic body radiation therapy Practical Radiation Oncology 2011, 1: 126-134. PMID: 24673926, DOI: 10.1016/j.prro.2010.11.002.
- Kilovoltage Imaging Doses in the Radiotherapy of Pediatric Cancer PatientsDeng J, Chen Z, Roberts KB, Nath R. Kilovoltage Imaging Doses in the Radiotherapy of Pediatric Cancer Patients International Journal Of Radiation Oncology • Biology • Physics 2011, 82: 1680-1688. PMID: 21477943, DOI: 10.1016/j.ijrobp.2011.01.062.
- Hypofractionation Results in Reduced Tumor Cell Kill Compared to Conventional Fractionation for Tumors With Regions of HypoxiaCarlson DJ, Keall PJ, Loo BW, Chen ZJ, Brown JM. Hypofractionation Results in Reduced Tumor Cell Kill Compared to Conventional Fractionation for Tumors With Regions of Hypoxia International Journal Of Radiation Oncology • Biology • Physics 2010, 79: 1188-1195. PMID: 21183291, PMCID: PMC3053128, DOI: 10.1016/j.ijrobp.2010.10.007.
- A Single-isocenter Multi-segment Conformal Arc Technique for Stereotactic Body Radiotherapy (SBRT)Kim J, Decker R, Carlson D, Chang B, Nath R, Chen Z. A Single-isocenter Multi-segment Conformal Arc Technique for Stereotactic Body Radiotherapy (SBRT) International Journal Of Radiation Oncology • Biology • Physics 2010, 78: s824. DOI: 10.1016/j.ijrobp.2010.07.1908.
- Impact of Kilo-voltage Imaging Doses to the Radiotherapy of Pediatric Cancer PatientsDeng J, Chen Z, Roberts K, Nath R. Impact of Kilo-voltage Imaging Doses to the Radiotherapy of Pediatric Cancer Patients International Journal Of Radiation Oncology • Biology • Physics 2010, 78: s590-s591. DOI: 10.1016/j.ijrobp.2010.07.1377.
- Reduced Skin Toxicity with Multiple Dwell Position Mammosite Brachytherapy: Preliminary Phase II Trial ResultsRowe B, Blitzblau R, Chen Z, Grube B, Weidhaas J. Reduced Skin Toxicity with Multiple Dwell Position Mammosite Brachytherapy: Preliminary Phase II Trial Results International Journal Of Radiation Oncology • Biology • Physics 2010, 78: s246. DOI: 10.1016/j.ijrobp.2010.07.588.
- A systematic evaluation of the dose-rate constant determined by photon spectrometry for 21 different models of low-energy photon-emitting brachytherapy sourcesChen Z, Nath R. A systematic evaluation of the dose-rate constant determined by photon spectrometry for 21 different models of low-energy photon-emitting brachytherapy sources Physics In Medicine And Biology 2010, 55: 6089-6104. PMID: 20871136, PMCID: PMC3265933, DOI: 10.1088/0031-9155/55/20/004.
- Impact of source‐production revision on the dose‐rate constant of interstitial brachytherapy sourcesChen Z, Bongiorni P, Nath R. Impact of source‐production revision on the dose‐rate constant of interstitial brachytherapy sources Medical Physics 2010, 37: 3607-3610. PMID: 20831068, PMCID: PMC2902542, DOI: 10.1118/1.3453766.
- Response to “Comment on ‘AAPM recommendations on dose prescription and reporting methods for permanent interstitial brachytherapy for prostate cancer: Report of Task Group 137’” [Med. Phys. 36, 5310–5322 (2009)]Nath R, Bice WS, Butler WM, Chen Z, Meigooni AS, Narayana V, Rivard MJ, Yu Y. Response to “Comment on ‘AAPM recommendations on dose prescription and reporting methods for permanent interstitial brachytherapy for prostate cancer: Report of Task Group 137’” [Med. Phys. 36, 5310–5322 (2009)] Medical Physics 2010, 37: 1933-1933. PMID: 20443515, DOI: 10.1118/1.3358143.
- Corrigendum to “Constrained non-rigid registration for use in image-guided adaptive radiotherapy” [Medical Image Analysis 13 (2009) 809–817]Greene W, Chelikani S, Purushothaman K, Knisely J, Chen Z, Papademetris X, Staib L, Duncan J. Corrigendum to “Constrained non-rigid registration for use in image-guided adaptive radiotherapy” [Medical Image Analysis 13 (2009) 809–817] Medical Image Analysis 2010, 14: 85. DOI: 10.1016/j.media.2009.09.003.
- A photon spectrometric dose‐rate constant determination for the Advantage™ Pd‐103 brachytherapy sourceChen ZJ, Bongiorni P, Nath R. A photon spectrometric dose‐rate constant determination for the Advantage™ Pd‐103 brachytherapy source Medical Physics 2010, 37: 672-674. PMID: 20229876, PMCID: PMC2821420, DOI: 10.1118/1.3298011.
- Integrated Segmentation and Nonrigid Registration for Application in Prostate Image-Guided RadiotherapyLu C, Chelikani S, Chen Z, Papademetris X, Staib LH, Duncan JS. Integrated Segmentation and Nonrigid Registration for Application in Prostate Image-Guided Radiotherapy 2010, 13: 53-60. PMID: 20879214, DOI: 10.1007/978-3-642-15705-9_7.
- A Serial-imaging Based 4D Dose Computation System for Prostate Implant DosimetryChen Z, Deng J, Carlson D, Roberts K, Decker R, Rockwell S, Nath R. A Serial-imaging Based 4D Dose Computation System for Prostate Implant Dosimetry International Journal Of Radiation Oncology • Biology • Physics 2009, 75: s349. DOI: 10.1016/j.ijrobp.2009.07.800.
- Towards Temporal Optimization of Radiation Fractionation: The Kinetic Effects of Tumor Hypoxia, DNA Damage Repair, and Tumor Cell RepopulationCarlson D, Keall P, Chen Z, Stewart R, Nath R, Brown J. Towards Temporal Optimization of Radiation Fractionation: The Kinetic Effects of Tumor Hypoxia, DNA Damage Repair, and Tumor Cell Repopulation International Journal Of Radiation Oncology • Biology • Physics 2009, 75: s615-s616. DOI: 10.1016/j.ijrobp.2009.07.1407.
- AAPM recommendations on dose prescription and reporting methods for permanent interstitial brachytherapy for prostate cancer: Report of Task Group 137Nath R, Bice WS, Butler WM, Chen Z, Meigooni AS, Narayana V, Rivard MJ, Yu Y. AAPM recommendations on dose prescription and reporting methods for permanent interstitial brachytherapy for prostate cancer: Report of Task Group 137 Medical Physics 2009, 36: 5310-5322. PMID: 19994539, PMCID: PMC2776817, DOI: 10.1118/1.3246613.
- Time dependence of energy spectra of brachytherapy sources and its impact on the half and the tenth value layersYue NJ, Chen Z, Hearn RA, Rodgers JJ, Nath R. Time dependence of energy spectra of brachytherapy sources and its impact on the half and the tenth value layers Medical Physics 2009, 36: 5175-5182. PMID: 19994527, DOI: 10.1118/1.3246843.
- 2D‐3D registration for prostate radiation therapy based on a statistical model of transmission imagesMunbodh R, Tagare HD, Chen Z, Jaffray DA, Moseley DJ, Knisely JP, Duncan JS. 2D‐3D registration for prostate radiation therapy based on a statistical model of transmission images Medical Physics 2009, 36: 4555-4568. PMID: 19928087, DOI: 10.1118/1.3213531.
- Constrained non-rigid registration for use in image-guided adaptive radiotherapyGreene WH, Chelikani S, Purushothaman K, Knisely JP, Chen Z, Papademetris X, Staib LH, Duncan JS. Constrained non-rigid registration for use in image-guided adaptive radiotherapy Medical Image Analysis 2009, 13: 809-817. PMID: 19682945, PMCID: PMC2771756, DOI: 10.1016/j.media.2009.07.004.
- Monte Carlo Investigation of Stereotactic Radiosurgery of Spinal MetastasesDeng J, Chen Z, Knisely J, Decker R, Chiang V, Nath R. Monte Carlo Investigation of Stereotactic Radiosurgery of Spinal Metastases 2009, 25/1: 13-16. DOI: 10.1007/978-3-642-03474-9_4.
- Impact of Kilo-Voltage Cone Beam Computed Tomography on Image-Guided Radiotherapy of Prostate CancerDeng J, Chen Z, Nath R. Impact of Kilo-Voltage Cone Beam Computed Tomography on Image-Guided Radiotherapy of Prostate Cancer 2009, 25/1: 17-20. DOI: 10.1007/978-3-642-03474-9_5.
- Clinical implementation of enhanced dynamic wedges into the Pinnacle treatment planning system: Monte Carlo validation and patient-specific QAAhmad M, Deng J, Lund MW, Chen Z, Kimmett J, Moran MS, Nath R. Clinical implementation of enhanced dynamic wedges into the Pinnacle treatment planning system: Monte Carlo validation and patient-specific QA Physics In Medicine And Biology 2008, 54: 447-465. PMID: 19098353, DOI: 10.1088/0031-9155/54/2/018.
- Ice as a water-equivalent solid medium for brachytherapy dosimetric measurementsSong H, Chen Z, Yue N, Wu Q, Yin FF. Ice as a water-equivalent solid medium for brachytherapy dosimetric measurements Radiation And Environmental Biophysics 2008, 48: 145-151. PMID: 19066926, DOI: 10.1007/s00411-008-0205-9.
- Automated 2D–3D registration of portal images and CT data using line‐segment enhancementMunbodh R, Chen Z, Jaffray DA, Moseley DJ, Knisely JP, Duncan JS. Automated 2D–3D registration of portal images and CT data using line‐segment enhancement Medical Physics 2008, 35: 4352-4361. PMID: 18975681, PMCID: PMC3910153, DOI: 10.1118/1.2975143.
- Impact of Respiratory Motion on the Calculation of Lung Dose in Stereotactic Body RadiotherapyLawrence K, Picone J, Yang T, Trumpore S, Nath R, Decker R, Wilson L, Chen Z. Impact of Respiratory Motion on the Calculation of Lung Dose in Stereotactic Body Radiotherapy International Journal Of Radiation Oncology • Biology • Physics 2008, 72: s675-s676. DOI: 10.1016/j.ijrobp.2008.06.385.
- How Uncertain is Tumor Control in a Specific Patient Undergoing Prostate EBRT?Purushothaman K, Chelikani S, Greene W, Knisely J, Chen Z, Nath R, Duncan J. How Uncertain is Tumor Control in a Specific Patient Undergoing Prostate EBRT? International Journal Of Radiation Oncology • Biology • Physics 2008, 72: s551-s552. DOI: 10.1016/j.ijrobp.2008.06.109.
- Constrained Non-rigid Registration (CNRR): An Image Guided Method to Update Prostate External Beam Radiotherapy (EBRT) PlansGreene W, Chelikani S, Purushothaman K, Chen Z, Knisely J, Staib L, Papademetris X, Duncan J. Constrained Non-rigid Registration (CNRR): An Image Guided Method to Update Prostate External Beam Radiotherapy (EBRT) Plans International Journal Of Radiation Oncology • Biology • Physics 2008, 72: s580. DOI: 10.1016/j.ijrobp.2008.06.172.
- Effects of Detector Spatial Resolution on 2D IMRT Dose Verification using MapCheck and Electronic Portal ImagerFan Y, Chen Z, Nath R. Effects of Detector Spatial Resolution on 2D IMRT Dose Verification using MapCheck and Electronic Portal Imager International Journal Of Radiation Oncology • Biology • Physics 2008, 72: s599-s600. DOI: 10.1016/j.ijrobp.2008.06.216.
- Multidwell Position MammoSite Brachytherapy Decreases Skin Toxicity, Preliminary Results of a Phase II TrialBlitzblau R, Chen Z, Grube B, Weidhaas J. Multidwell Position MammoSite Brachytherapy Decreases Skin Toxicity, Preliminary Results of a Phase II Trial International Journal Of Radiation Oncology • Biology • Physics 2008, 72: s186. DOI: 10.1016/j.ijrobp.2008.06.757.
- Evaluation of an electron Monte Carlo dose calculation algorithm for electron beamsHu YA, Song H, Chen Z, Zhou S, Yin F. Evaluation of an electron Monte Carlo dose calculation algorithm for electron beams Journal Of Applied Clinical Medical Physics 2008, 9: 1-15. PMID: 18716583, PMCID: PMC5722292, DOI: 10.1120/jacmp.v9i3.2720.
- A preliminary report on AAPM guidelines on the physics of dose prescription and reporting methods for permanent interstitial brachytherapy for prostate cancerNath R, Bice W, Butler W, Chen Z, Meigooni A, Narayana V, Rivard M, Yu Y. A preliminary report on AAPM guidelines on the physics of dose prescription and reporting methods for permanent interstitial brachytherapy for prostate cancer Brachytherapy 2008, 7: 132. DOI: 10.1016/j.brachy.2008.02.123.
- Photon energy spectrum emitted by a novel polymer‐encapsulated source and its effect on the dose rate constantKhan S, Chen ZJ, Nath R. Photon energy spectrum emitted by a novel polymer‐encapsulated source and its effect on the dose rate constant Medical Physics 2008, 35: 1403-1406. PMID: 18491535, PMCID: PMC2673625, DOI: 10.1118/1.2870231.
- A Constrained Non-rigid Registration Algorithm for Use in Prostate Image-Guided RadiotherapyGreene W, Chelikani S, Purushothaman K, Chen Z, Knisely J, Staib L, Papademetris X, Duncan J. A Constrained Non-rigid Registration Algorithm for Use in Prostate Image-Guided Radiotherapy 2008, 11: 780-788. PMID: 18979817, PMCID: PMC2790815, DOI: 10.1007/978-3-540-85988-8_93.
- On the Need to Compensate for Edema-Induced Dose Reductions in Preplanned 131Cs Prostate BrachytherapyChen ZJ, Deng J, Roberts K, Nath R. On the Need to Compensate for Edema-Induced Dose Reductions in Preplanned 131Cs Prostate Brachytherapy International Journal Of Radiation Oncology • Biology • Physics 2007, 70: 303-310. PMID: 17980500, PMCID: PMC2289996, DOI: 10.1016/j.ijrobp.2007.09.007.
- IMRT Allows Further Dose Escalation in Selected Patients With Stage III Non-Small Cell Lung CancerYang T, Lawrence K, Chen Z, Padmanabha S, Wilson L, Decker R. IMRT Allows Further Dose Escalation in Selected Patients With Stage III Non-Small Cell Lung Cancer International Journal Of Radiation Oncology • Biology • Physics 2007, 69: s531. DOI: 10.1016/j.ijrobp.2007.07.1768.
- A Two-Stage IMRT Treatment Protocol Provides More Robust Radiotherapy for Prostate Cancer in Presence of Inter- and Intra-Fractional Organ MotionsChen Z, Deng J, Nath R, Peschel R. A Two-Stage IMRT Treatment Protocol Provides More Robust Radiotherapy for Prostate Cancer in Presence of Inter- and Intra-Fractional Organ Motions International Journal Of Radiation Oncology • Biology • Physics 2007, 69: s713-s714. DOI: 10.1016/j.ijrobp.2007.07.2100.
- A Monte Carlo Assisted Research and Treatment Planning SystemDeng J, Yan Y, Chen Z, Weng X, Nath R. A Monte Carlo Assisted Research and Treatment Planning System International Journal Of Radiation Oncology • Biology • Physics 2007, 69: s636-s637. DOI: 10.1016/j.ijrobp.2007.07.1972.
- Evolution of Tumor Control in External Beam Radiotherapy of Prostate CancerPurushothaman K, Chelikani S, Chen Z, Knisely J, Nath R, Duncan J. Evolution of Tumor Control in External Beam Radiotherapy of Prostate Cancer International Journal Of Radiation Oncology • Biology • Physics 2007, 69: s648. DOI: 10.1016/j.ijrobp.2007.07.1991.
- Silver fluorescent x‐ray yield and its influence on the dose rate constant for nine low‐energy brachytherapy source modelsNath R, Chen ZJ. Silver fluorescent x‐ray yield and its influence on the dose rate constant for nine low‐energy brachytherapy source models Medical Physics 2007, 34: 3785-3793. PMID: 17985624, DOI: 10.1118/1.2775665.
- A frequency‐based approach to locate common structure for 2D‐3D intensity‐based registration of setup images in prostate radiotherapyMunbodh R, Chen Z, Jaffray DA, Moseley DJ, Knisely JP, Duncan JS. A frequency‐based approach to locate common structure for 2D‐3D intensity‐based registration of setup images in prostate radiotherapy Medical Physics 2007, 34: 3005-3017. PMID: 17822009, PMCID: PMC2796184, DOI: 10.1118/1.2745235.
- SU‐FF‐T‐106: Clinical Implementation of Varian Enhanced Dynamic Wedges Into the Pinnacle Treatment Planning System: Monte Carlo Dosimetry and Patient‐Specific Quality Assurance TechniquesAhmad M, Deng J, Chen Z, Lund M, Kimmett J, Moran M, Nath R. SU‐FF‐T‐106: Clinical Implementation of Varian Enhanced Dynamic Wedges Into the Pinnacle Treatment Planning System: Monte Carlo Dosimetry and Patient‐Specific Quality Assurance Techniques Medical Physics 2007, 34: 2425-2425. DOI: 10.1118/1.2760762.
- Photon spectrometry for the determination of the dose‐rate constant of low‐energy photon‐emitting brachytherapy sourcesChen ZJ, Nath R. Photon spectrometry for the determination of the dose‐rate constant of low‐energy photon‐emitting brachytherapy sources Medical Physics 2007, 34: 1412-1430. PMID: 17500473, DOI: 10.1118/1.2713217.
- Principles and requirements of external beam dosimetryChen Z, d’Errico F, Nath R. Principles and requirements of external beam dosimetry Radiation Measurements 2006, 41: s2-s21. DOI: 10.1016/j.radmeas.2007.01.010.
- 2686 Impact of Margin Allocation on Uncertainty in Tumor Control Probability (TCP) in External Beam Radiotherapy (EBRT) of Prostate CancerPurushothaman K, Chelikani S, Chen Z, Knisely J, Nath R, Duncan J. 2686 Impact of Margin Allocation on Uncertainty in Tumor Control Probability (TCP) in External Beam Radiotherapy (EBRT) of Prostate Cancer International Journal Of Radiation Oncology • Biology • Physics 2006, 66: s590-s591. DOI: 10.1016/j.ijrobp.2006.07.1101.
- 2052 A Phase II Trial of Mammosite Breast Brachytherapy Optimization in the Treatment of Stage 0, I and II Breast CarcinomaWeidhaas J, Ponn T, Chen Z, Martel M, Zelterman D. 2052 A Phase II Trial of Mammosite Breast Brachytherapy Optimization in the Treatment of Stage 0, I and II Breast Carcinoma International Journal Of Radiation Oncology • Biology • Physics 2006, 66: s239. DOI: 10.1016/j.ijrobp.2006.07.455.
- Application of Gafchromic® film in the dosimetry of an intravascular brachytherapy sourceSong H, Roa DE, Yue N, d'Errico F, Chen Z, Nath R. Application of Gafchromic® film in the dosimetry of an intravascular brachytherapy source Medical Physics 2006, 33: 2519-2524. PMID: 16898455, DOI: 10.1118/1.2208930.
- Limitations of silicon diodes for clinical electron dosimetry.Song H, Ahmad M, Deng J, Chen Z, Yue NJ, Nath R. Limitations of silicon diodes for clinical electron dosimetry. Radiation Protection Dosimetry 2006, 120: 56-9. PMID: 16772305, DOI: 10.1093/rpd/ncj007.
- A gradient feature weighted Minimax algorithm for registration of multiple portal images to 3DCT volumes in prostate radiotherapyChelikani S, Purushothaman K, Knisely J, Chen Z, Nath R, Bansal R, Duncan J. A gradient feature weighted Minimax algorithm for registration of multiple portal images to 3DCT volumes in prostate radiotherapy International Journal Of Radiation Oncology • Biology • Physics 2006, 65: 535-547. PMID: 16690436, PMCID: PMC2791048, DOI: 10.1016/j.ijrobp.2005.12.032.
- SU‐FF‐T‐90: An Improved Irradiation Setup for An Accurate Measurement of the Dose Rate Constant of Low‐Energy Brachytherapy Sources Using Micro‐TLD CubesChen Z, Deng J, Bongiorni P, Nath R. SU‐FF‐T‐90: An Improved Irradiation Setup for An Accurate Measurement of the Dose Rate Constant of Low‐Energy Brachytherapy Sources Using Micro‐TLD Cubes Medical Physics 2006, 33: 2069-2069. DOI: 10.1118/1.2241015.
- Automated 2D‐3D registration of a radiograph and a cone beam CT using line‐segment enhancementa)Munbodh R, Jaffray DA, Moseley DJ, Chen Z, Knisely JP, Cathier P, Duncan JS. Automated 2D‐3D registration of a radiograph and a cone beam CT using line‐segment enhancementa) Medical Physics 2006, 33: 1398-1411. PMID: 16752576, PMCID: PMC2796183, DOI: 10.1118/1.2192621.
- Evaluation of the EDR-2 film for relative dosimetry of high-energy photon and electron beams.Ahmad M, Chen Z, Song H, Deng J, Nath R. Evaluation of the EDR-2 film for relative dosimetry of high-energy photon and electron beams. Radiation Protection Dosimetry 2006, 120: 159-62. PMID: 16644932, DOI: 10.1093/rpd/ncj006.
- Potential impact of prostate edema on the dosimetry of permanent seed implants using the new (model CS‐1) seedsChen Z, Deng J, Roberts K, Nath R. Potential impact of prostate edema on the dosimetry of permanent seed implants using the new (model CS‐1) seeds Medical Physics 2006, 33: 968-975. PMID: 16696473, DOI: 10.1118/1.2179170.
- Dose rate constant of a Cesium‐131 interstitial brachytherapy seed measured by thermoluminescent dosimetry and gamma‐ray spectrometryChen Z, Bongiorni P, Nath R. Dose rate constant of a Cesium‐131 interstitial brachytherapy seed measured by thermoluminescent dosimetry and gamma‐ray spectrometry Medical Physics 2005, 32: 3279-3285. PMID: 16372409, DOI: 10.1118/1.2098127.
- Automated Three Dimensional Quantification of Setup Deviations in Radiation Therapy Using a Single Portal Image and Cone Beam CT DataMunbodh R, Jaffray D, Moseley D, Chen Z, Knisely J, Duncan J. Automated Three Dimensional Quantification of Setup Deviations in Radiation Therapy Using a Single Portal Image and Cone Beam CT Data International Journal Of Radiation Oncology • Biology • Physics 2005, 63: s521. DOI: 10.1016/j.ijrobp.2005.07.881.
- TU‐D‐T‐617‐04: Dose Rate Constant of the Cesium‐131 (model CS‐1) Interstitial Brachytherapy Seeds Measured by Thermal‐Luminescent Dosimeter (TLD) and by Gamma‐Ray SpectroscopyChen Z, Bongiorni P, Nath R. TU‐D‐T‐617‐04: Dose Rate Constant of the Cesium‐131 (model CS‐1) Interstitial Brachytherapy Seeds Measured by Thermal‐Luminescent Dosimeter (TLD) and by Gamma‐Ray Spectroscopy Medical Physics 2005, 32: 2098-2099. DOI: 10.1118/1.1998408.
- Relative Biological Effectiveness of 103Pd and 125I Photons for Continuous Low-Dose-Rate Irradiation of Chinese Hamster CellsNath R, Bongiorni P, Chen Z, Gragnano J, Rockwell S. Relative Biological Effectiveness of 103Pd and 125I Photons for Continuous Low-Dose-Rate Irradiation of Chinese Hamster Cells Radiation Research 2005, 163: 501-509. PMID: 15850411, DOI: 10.1667/rr3363.
- Dose rate dependence of the relative biological effectiveness of 103Pd for continuous low dose rate irradiation of BA1112 rhabdomyosarcoma cells in vitro relative to acute exposuresNath R, Bongiorni P, Chen Z, Gragnano J, Rockwell S. Dose rate dependence of the relative biological effectiveness of 103Pd for continuous low dose rate irradiation of BA1112 rhabdomyosarcoma cells in vitro relative to acute exposures International Journal Of Radiation Biology 2005, 81: 689-699. PMID: 16368647, DOI: 10.1080/09553000500401551.
- Imrt of whole pelvis and inguinal nodes: Evaluation of dose distributions produced by an inverse treatment planning systemAhmad M, Song H, Moran M, Lund M, Chen Z, Deng J, Haffty B, Nath R. Imrt of whole pelvis and inguinal nodes: Evaluation of dose distributions produced by an inverse treatment planning system International Journal Of Radiation Oncology • Biology • Physics 2004, 60: s484-s485. DOI: 10.1016/j.ijrobp.2004.07.410.
- Matching the dosimetry characteristics of a dual-field Stanford technique to a customized single-field Stanford technique for total skin electron therapyChen Z, Agostinelli AG, Wilson LD, Nath R. Matching the dosimetry characteristics of a dual-field Stanford technique to a customized single-field Stanford technique for total skin electron therapy International Journal Of Radiation Oncology • Biology • Physics 2004, 59: 872-885. PMID: 15183491, DOI: 10.1016/j.ijrobp.2004.02.046.
- Iodine 125 Versus Palladium 103 Implants for Prostate CancerPeschel RE, Colberg JW, Chen Z, Nath R, Wilson LD. Iodine 125 Versus Palladium 103 Implants for Prostate Cancer The Cancer Journal 2004, 10: 170-174. PMID: 15285926, DOI: 10.1097/00130404-200405000-00006.
- A technique to re-establish dose distributions for previously treated brain cancer patients in external beam radiotherapyYue NJ, Knisely JP, Studholme C, Chen Z, Bond JE, Nath R. A technique to re-establish dose distributions for previously treated brain cancer patients in external beam radiotherapy Medical Dosimetry 2004, 29: 31-41. PMID: 15023391, DOI: 10.1016/j.meddos.2003.09.004.
- Development of a rat solid tumor model for continuous low-dose-rate irradiation studies using 125I and 103Pd sourcesNath R, Bongiorni P, Chen Z, Gragnano J, Rockwell S. Development of a rat solid tumor model for continuous low-dose-rate irradiation studies using 125I and 103Pd sources Brachytherapy 2004, 3: 159-172. PMID: 15533809, DOI: 10.1016/j.brachy.2004.08.004.
- Influence of position errors on tumor control in external beam therapy of prostate cancer: concepts of TCP maps and probability densitiesPurushothaman K, Chelikani S, Chen Z, Peschel R, Knisely J, Nath R, Duncan J. Influence of position errors on tumor control in external beam therapy of prostate cancer: concepts of TCP maps and probability densities International Journal Of Radiation Oncology • Biology • Physics 2003, 57: s338. DOI: 10.1016/s0360-3016(03)01224-0.
- Biologically effective dose (BED) for interstitial seed implants containing a mixture of radionuclides with different half-livesChen Z, Nath R. Biologically effective dose (BED) for interstitial seed implants containing a mixture of radionuclides with different half-lives International Journal Of Radiation Oncology • Biology • Physics 2003, 55: 825-834. PMID: 12573770, DOI: 10.1016/s0360-3016(02)04282-7.
- Entropy-Based Dual-Portal-to-3-DCT Registration Incorporating Pixel CorrelationBansal R, Staib LH, Chen Z, Rangarajan A, Knisely J, Nath R, Duncan JS. Entropy-Based Dual-Portal-to-3-DCT Registration Incorporating Pixel Correlation IEEE Transactions On Medical Imaging 2003, 22: 29. PMID: 12703758, DOI: 10.1109/tmi.2002.806430.
- An automated image registration algorithm for quantifying three-dimensional setup variations in prostate radiotherapyMunbodh R, Chen Z, Knisely J, Nath R, Duncan J. An automated image registration algorithm for quantifying three-dimensional setup variations in prostate radiotherapy International Journal Of Radiation Oncology • Biology • Physics 2002, 54: 183. DOI: 10.1016/s0360-3016(02)03374-6.
- Independent monitor unit calculation for intensity modulated radiotherapy using the MIMiC multileaf collimatorChen Z, Xing L, Nath R. Independent monitor unit calculation for intensity modulated radiotherapy using the MIMiC multileaf collimator Medical Physics 2002, 29: 2041-2051. PMID: 12349925, DOI: 10.1118/1.1500397.
- Edema-induced increase in tumour cell survival for 125I and 103Pd prostate permanent seed implants—a bio-mathematical modelYue N, Chen Z, Nath R. Edema-induced increase in tumour cell survival for 125I and 103Pd prostate permanent seed implants—a bio-mathematical model Physics In Medicine And Biology 2002, 47: 1185-1204. PMID: 11996063, DOI: 10.1088/0031-9155/47/7/313.
- Dose rate constant and energy spectrum of interstitial brachytherapy sourcesChen Z, Nath R. Dose rate constant and energy spectrum of interstitial brachytherapy sources Medical Physics 2001, 28: 86-96. PMID: 11213926, DOI: 10.1118/1.1333748.
- Dosimetric effects of edema in permanent prostate seed implants: a rigorous solutionChen Z, Yue N, Wang X, Roberts K, Peschel R, Nath R. Dosimetric effects of edema in permanent prostate seed implants: a rigorous solution International Journal Of Radiation Oncology • Biology • Physics 2000, 47: 1405-1419. PMID: 10889396, DOI: 10.1016/s0360-3016(00)00549-6.
- Dosimetric effects of needle divergence in prostate seed implant using and radioactive seedsNath S, Chen Z, Yue N, Trumpore S, Peschel R. Dosimetric effects of needle divergence in prostate seed implant using and radioactive seeds Medical Physics 2000, 27: 1058-1066. PMID: 10841410, DOI: 10.1118/1.598971.
- Graticule development for portal film confirmation of accurate patient positioning in Peacock™ intensity modulated radiation therapyKnisely J, Chen Z, Starno M, Vitali P. Graticule development for portal film confirmation of accurate patient positioning in Peacock™ intensity modulated radiation therapy International Journal Of Radiation Oncology • Biology • Physics 2000, 48: 333. DOI: 10.1016/s0360-3016(00)80470-8.
- Optimum timing for image-based dose evaluation of 125I and 103Pd prostate seed implantsYue N, Chen Z, Peschel R, Dicker A, Waterman F, Nath R. Optimum timing for image-based dose evaluation of 125I and 103Pd prostate seed implants International Journal Of Radiation Oncology • Biology • Physics 1999, 45: 1063-1072. PMID: 10571216, DOI: 10.1016/s0360-3016(99)00282-5.
- Long‐term complications with prostate implants: Iodine‐125 vs. palladium‐103Peschel R, Chen Z, Roberts K, Nath R. Long‐term complications with prostate implants: Iodine‐125 vs. palladium‐103 International Journal Of Cancer 1999, 7: 278-288. PMID: 10580897, DOI: 10.1002/(sici)1520-6823(1999)7:5<278::aid-roi3>3.0.co;2-3.
- Combined use of transverse and scout computed tomography scans to localize radioactive seeds in an interstitial brachytherapy implantYue N, Chen Z, Bond J, Son Y, Nath R. Combined use of transverse and scout computed tomography scans to localize radioactive seeds in an interstitial brachytherapy implant Medical Physics 1999, 26: 502-505. PMID: 10227350, DOI: 10.1118/1.598548.
- A minimax entropy registration framework for patient setup verification in radiotherapyBansal R, Staib L, Chen Z, Rangarajan A, Knisely J, Nath R, Duncan J. A minimax entropy registration framework for patient setup verification in radiotherapy Computer Assisted Surgery 1999, 4: 287-304. PMID: 10631372, DOI: 10.1002/(sici)1097-0150(1999)4:6<287::aid-igs1>3.0.co;2-9.
- A Minimax Entropy Registration Framework for Patient Setup Verification in RadiotherapyBansal R, Staib L, Chen Z, Rangarajan A, Knisely J, Nath R, Duncan J. A Minimax Entropy Registration Framework for Patient Setup Verification in Radiotherapy Computer Assisted Surgery 1999, 4: 287-304. DOI: 10.3109/10929089909148182.
- Entropy-Based, Multiple-Portal-to-3DCT Registration for Prostate Radiotherapy Using Iteratively Estimated SegmentationBansal R, Staib L, Chen Z, Rangarajan A, Knisely J, Nath R, Duncan J. Entropy-Based, Multiple-Portal-to-3DCT Registration for Prostate Radiotherapy Using Iteratively Estimated Segmentation 1999, 1679: 567-578. DOI: 10.1007/10704282_61.
- Correlation of medical dosimetry quality indicators to the local tumor control in patients with prostate cancer treated with iodine‐125 interstitial implantsNath R, Roberts K, Ng M, Peschel R, Chen Z. Correlation of medical dosimetry quality indicators to the local tumor control in patients with prostate cancer treated with iodine‐125 interstitial implants Medical Physics 1998, 25: 2293-2307. PMID: 9874821, DOI: 10.1118/1.598440.
- On the use of unshielded cables in ionization chamber dosimetry for total-skin electron therapyChen Z, Agostinelli A, Nath R. On the use of unshielded cables in ionization chamber dosimetry for total-skin electron therapy Physics In Medicine And Biology 1998, 43: 539-546. PMID: 9533133, DOI: 10.1088/0031-9155/43/3/006.
- Simulataneous segmentation and registration of 2D portal and 3D CT images for treatment setup verification in radiotherapyBansal R, Staib L, Chen Z, Rangarajan A, Knisley J, Nath R, Duncan J. Simulataneous segmentation and registration of 2D portal and 3D CT images for treatment setup verification in radiotherapy International Journal Of Radiation Oncology • Biology • Physics 1998, 42: 157. DOI: 10.1016/s0360-3016(98)80167-3.
- A novel approach for the registration of 2D portal and 3D CT images for treatment setup verification in radiotherapyBansal R, Staib L, Chen Z, Rangarajan A, Knisely J, Nath R, Duncan J. A novel approach for the registration of 2D portal and 3D CT images for treatment setup verification in radiotherapy 1998, 1496: 1075-1086. DOI: 10.1007/bfb0056297.