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Christopher J. Tien, PhD, DABR

Assistant Professor of Therapeutic Radiology; Lead Physicist for Brachytherapy, Therapeutic Radiology

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Christopher J. Tien, PhD, DABR
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Selected Publications

  • Preliminary dosimetric comparison between fixed and rotating source stereotactic radiosurgery systems.Draeger E, Chen ZJ, Hansen JE, Chiang V, Tien CJ. Preliminary dosimetric comparison between fixed and rotating source stereotactic radiosurgery systems. J Appl Clin Med Phys 2023, e13907. PMID: 36660774, DOI: 10.1002/acm2.13907.
  • Letter to the Editor with regards to “Impact of detector selection on commissioning of Leipzig surface applicators with improving immobilization in high-dose-rate brachytherapy” by Li et al. CJ Tien, E Draeger, DW Pinkham, DJ Carlson, Z Chen. Letter to the Editor with regards to “Impact of detector selection on commissioning of Leipzig surface applicators with improving immobilization in high-dose-rate brachytherapy” by Li et al. Brachytherapy. E-pub ahead of print. DOI: https://doi.org/10.1016/j.brachy.2022.11.004
  • Implementing a simulation-based curriculum for hybrid intracavitary/interstitial brachytherapy using a new, commercially available, US/MR/CT-compatible gynecologic phantomLi J, Tien C, Kassick M, Peters G, Damast S. Implementing a simulation-based curriculum for hybrid intracavitary/interstitial brachytherapy using a new, commercially available, US/MR/CT-compatible gynecologic phantom Brachytherapy 2022 PMID: 36528476, DOI: 10.1016/j.brachy.2022.11.006.
  • PO17 Assessment of a Prototype Gynecologic US/MR/CT Phantom for Utilization in Interstitial Brachytherapy TrainingTien C, Li J, Kassick M, Peters G, Damast S. PO17 Assessment of a Prototype Gynecologic US/MR/CT Phantom for Utilization in Interstitial Brachytherapy Training Brachytherapy 2022, 21: s79. DOI: 10.1016/j.brachy.2022.09.123.
  • GPP07  Presentation Time: 9:40 AM Investigating the Efficacy of Simulation-Based Education for Interstitial Gynecologic Brachytherapy Using a Novel US/MR/CT-Compatible Gynecologic PhantomLi J, Tien C, Kassick M, Peters G, Damast S. GPP07  Presentation Time: 9:40 AM Investigating the Efficacy of Simulation-Based Education for Interstitial Gynecologic Brachytherapy Using a Novel US/MR/CT-Compatible Gynecologic Phantom Brachytherapy 2022, 21: s38. DOI: 10.1016/j.brachy.2022.09.044.
  • 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.
  • Single application hybrid interstitial brachytherapy for cervical cancer: an institutional approach during the COVID-19 pandemicDamast S, Tien CJ, Young M, Altwerger G, Ratner E. Single application hybrid interstitial brachytherapy for cervical cancer: an institutional approach during the COVID-19 pandemic Journal Of Contemporary Brachytherapy 2022, 14: 66-71. PMID: 35233237, PMCID: PMC8867238, DOI: 10.5114/jcb.2022.113058.
  • 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.
  • Letter to the Editor with regards to “Impact of detector selection on commissioning of Leipzig surface applicators with improving immobilization in high-dose-rate brachytherapy” by Li et al.CJ Tien, E Draeger, DW Pinkham, DJ Carlson, Z Chen. Letter to the Editor with regards to “Impact of detector selection on commissioning of Leipzig surface applicators with improving immobilization in high-dose-rate brachytherapy” by Li et al. In press at Brachytherapy. 2022.
  • Implementing a simulation-based curriculum for hybrid intracavitary/interstitial brachytherapy using a new, commercially available, US/MR/CT-compatible gynecologic phantom.JY Li, CJ Tien, M Kassick, GW Peters, S Damast. “Implementing a simulation-based curriculum for hybrid intracavitary/interstitial brachytherapy using a new, commercially available, US/MR/CT-compatible gynecologic phantom.” Accepted November 25, 2022 to Brachytherapy. In press.
  • Role of Gamma Knife Radiosurgery in Small Cell Lung Cancer: A Multi-Institutional Retrospective Study of the International Radiosurgery Research Foundation (IRRF)Cifarelli C, Vargo J, Fang W, Liscak R, Guseynova K, Warnick R, Lee C, Yang H, Borghei-Razavi H, Maiti T, Siddiqui Z, Yuan J, Grills I, Mathieu D, Touchette C, Cordeiro D, Chiang V, Hess J, Tien C, Faramand A, Kano H, Barnett G, Sheehan J, Lunsford L. Role of Gamma Knife Radiosurgery in Small Cell Lung Cancer: A Multi-Institutional Retrospective Study of the International Radiosurgery Research Foundation (IRRF) Neurosurgery 2021, 89: s20-s20. DOI: 10.1093/neuros/nyz428_s020.
  • GSOR10 Presentation Time: 3:15 PM Single Implant Hybrid Interstitial Brachytherapy for Cervical Cancer during the COVID-19 Pandemic: An Institutional ApproachDamast S, Tien C, Young M, Altwerger G, Ratner E. GSOR10 Presentation Time: 3:15 PM Single Implant Hybrid Interstitial Brachytherapy for Cervical Cancer during the COVID-19 Pandemic: An Institutional Approach Brachytherapy 2021, 20: s54. PMCID: PMC8215885, DOI: 10.1016/j.brachy.2021.06.086.
  • 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.
  • PO27 A Dosimetric Comparison between Rounded-Tip vs Flat-Tip Multichannel Applicators for Recurrent Endometrial Cancer Involving Vaginal ApexTien C, Damast S. PO27 A Dosimetric Comparison between Rounded-Tip vs Flat-Tip Multichannel Applicators for Recurrent Endometrial Cancer Involving Vaginal Apex Brachytherapy 2021, 20: s68-s69. DOI: 10.1016/j.brachy.2021.06.115.
  • PHSOR11 Presentation Time: 10:50 AM Utilizing Tumor Control Probability to Aid in Selection of Multi-Dwell or Single-Dwell Methodology for Leipzig-Style Applicators: A Preliminary StudyDraeger E, Decker R, Tien C. PHSOR11 Presentation Time: 10:50 AM Utilizing Tumor Control Probability to Aid in Selection of Multi-Dwell or Single-Dwell Methodology for Leipzig-Style Applicators: A Preliminary Study Brachytherapy 2021, 20: s28-s29. DOI: 10.1016/j.brachy.2021.06.037.
  • PHSOR04 Presentation Time: 10:15 AM Single-Channel Cylinders with Metal Stems: Considerations in Brachytherapy Dose Reporting to Clinical TrialsTien C. PHSOR04 Presentation Time: 10:15 AM Single-Channel Cylinders with Metal Stems: Considerations in Brachytherapy Dose Reporting to Clinical Trials Brachytherapy 2021, 20: s24-s25. DOI: 10.1016/j.brachy.2021.06.030.
  • 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.
  • Evaluating Clinical Outcomes in 3D vs. 2D Vaginal BrachytherapyKassick M, Gao S, Qian J, Tien C, Damast S. Evaluating Clinical Outcomes in 3D vs. 2D Vaginal Brachytherapy International Journal Of Radiation Oncology • Biology • Physics 2020, 108: e493-e494. DOI: 10.1016/j.ijrobp.2020.07.1562.
  • Does Use of Bowel Prep Improve HDR Cervix Implant Dosimetry?Kassick M, Gao S, Park H, Kelly J, Young M, Tien C, Damast S. Does Use of Bowel Prep Improve HDR Cervix Implant Dosimetry? International Journal Of Radiation Oncology • Biology • Physics 2019, 105: e324. DOI: 10.1016/j.ijrobp.2019.06.1808.
  • Impact of Tissue Heterogeneity Correction on Stereotactic Radiosurgery of Acoustic NeuromasWelch G, Tien C, Chiang V, Yu J, Hansen J, Aneja S. Impact of Tissue Heterogeneity Correction on Stereotactic Radiosurgery of Acoustic Neuromas International Journal Of Radiation Oncology • Biology • Physics 2019, 105: e785. DOI: 10.1016/j.ijrobp.2019.06.749.
  • 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.
  • 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.
  • Does Rectosigmoid Contrast Negatively Affect HDR Cervix Brachytherapy Implant Dosimetry?Kassick M, Gao S, Young M, Tien C, Damast S. Does Rectosigmoid Contrast Negatively Affect HDR Cervix Brachytherapy Implant Dosimetry? Brachytherapy 2019, 18: s98-s99. DOI: 10.1016/j.brachy.2019.04.213.
  • 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.
  • Results of a pilot/phase II study of gamma knife radiosurgery for brain metastases and implications for future prospective clinical trialsYu J, Singh C, Bindra R, Contessa J, Husain Z, Hansen J, Park H, Roberts K, Bond J, Tien C, Guo F, Colaco R, Housri N, Magnuson W, Mahajan A, Omay S, Chiang V. Results of a pilot/phase II study of gamma knife radiosurgery for brain metastases and implications for future prospective clinical trials Journal Of Radiation Oncology 2019, 8: 39-46. DOI: 10.1007/s13566-018-0370-7.
  • Assessment of Absolute Dose Rate in Tungsten-Shielded Applicators for High-Dose-Rate Brachytherapy: Comparing Results Between Advanced Dose Calculation Methodologies and Physical MeasurementsTien C, Chen Z. Assessment of Absolute Dose Rate in Tungsten-Shielded Applicators for High-Dose-Rate Brachytherapy: Comparing Results Between Advanced Dose Calculation Methodologies and Physical Measurements International Journal Of Radiation Oncology • Biology • Physics 2018, 102: e501. DOI: 10.1016/j.ijrobp.2018.07.1422.
  • A Pilot/Phase II Study of Stereotactic Radiosurgery for Brain Metastases Using Rational Dose SelectionYu J, Singh C, Bindra R, Contessa J, Husain Z, Hansen J, Park H, Roberts K, Bond J, Tien C, Guo F, Colaco R, Housri N, Magnuson W, Omay B, Chiang V. A Pilot/Phase II Study of Stereotactic Radiosurgery for Brain Metastases Using Rational Dose Selection International Journal Of Radiation Oncology • Biology • Physics 2018, 102: e372-e373. DOI: 10.1016/j.ijrobp.2018.07.1113.
  • 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.
  • Image-Guided Multi-Channel Cylinder Brachytherapy for Gynecologic Cancers Involving the Vagina: Initial Experience with Vaginal Dose-Volume ParametersDamast S, Young M, Picone J, Kimmett J, Kaur M, Tien C. Image-Guided Multi-Channel Cylinder Brachytherapy for Gynecologic Cancers Involving the Vagina: Initial Experience with Vaginal Dose-Volume Parameters Brachytherapy 2018, 17: s115-s116. DOI: 10.1016/j.brachy.2018.04.212.
  • 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.
  • 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.
  • 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.
  • Clinical Significance of Different Contouring Software on Formalism-Based Y-90 Dose PrescriptionsTien C, Yedavalli R. Clinical Significance of Different Contouring Software on Formalism-Based Y-90 Dose Prescriptions International Journal Of Radiation Oncology • Biology • Physics 2016, 96: e647. DOI: 10.1016/j.ijrobp.2016.06.2248.
  • Does Rectal Distention Affect Interfractional Dose to Prostate and Rectum in Prostate IMRT Treatment?: Optimizing IGRT TechniquesZhung J, Tien C, Hiatt J, DiPetrillo T. Does Rectal Distention Affect Interfractional Dose to Prostate and Rectum in Prostate IMRT Treatment?: Optimizing IGRT Techniques International Journal Of Radiation Oncology • Biology • Physics 2013, 87: s721. DOI: 10.1016/j.ijrobp.2013.06.1910.
  • Experience Using Fractionated Stereotactic Radiosurgery to Treat Large CNS MetastasesSavir G, Rava P, Tien C, Hiatt J, Kinsella T, DiPetrillo T, Wazer D, Hepel J. Experience Using Fractionated Stereotactic Radiosurgery to Treat Large CNS Metastases International Journal Of Radiation Oncology • Biology • Physics 2013, 87: s283. DOI: 10.1016/j.ijrobp.2013.06.739.
  • SU‐E‐J‐24: Imaging Dose Dependence On Fractionation Scheme and Tracking Method in CyberKnife Robotic RadiosurgeryTien C, Dieterich S, Lee S, Curran B, Sternick E. SU‐E‐J‐24: Imaging Dose Dependence On Fractionation Scheme and Tracking Method in CyberKnife Robotic Radiosurgery Medical Physics 2013, 40: 154-154. DOI: 10.1118/1.4814236.
  • SU‐E‐T‐115: Collimator Scatter Factor (Sc) Measurements for IRIS in CyberKnife Using Build‐Up CapsLee S, Tien C, Curran B, Jang S, Sternick E. SU‐E‐T‐115: Collimator Scatter Factor (Sc) Measurements for IRIS in CyberKnife Using Build‐Up Caps Medical Physics 2013, 40: 230-230. DOI: 10.1118/1.4814550.
  • SU‐E‐T‐144: A Novel Phantom for Verifying Patient Orientation Integrity in Radiation Oncology Treatment PlanningTien C, Liu F, Curran B, Sternick E. SU‐E‐T‐144: A Novel Phantom for Verifying Patient Orientation Integrity in Radiation Oncology Treatment Planning Medical Physics 2013, 40: 237-237. DOI: 10.1118/1.4814579.
  • SU‐E‐T‐438: Dosimetric Effect of Patient Arm Position in Spinal CyberKnife Robotic RadiosurgeryMihaylov I, Tien C, Hepel J. SU‐E‐T‐438: Dosimetric Effect of Patient Arm Position in Spinal CyberKnife Robotic Radiosurgery Medical Physics 2013, 40: 306-306. DOI: 10.1118/1.4814872.
  • SU‐E‐T‐176: Improved Collimator Scattering Factor (Sc) Measurements for Small Fields Using Build‐Up Caps in Robotic RadiosurgeryLee S, Tien C, Curran B, Sternick E. SU‐E‐T‐176: Improved Collimator Scattering Factor (Sc) Measurements for Small Fields Using Build‐Up Caps in Robotic Radiosurgery Medical Physics 2012, 39: 3743-3743. PMID: 28517848, DOI: 10.1118/1.4735235.
  • SU‐E‐T‐312: Optically Stimulated Luminescent Dosimeter Performance in High Dose Rate BrachytherapyTien C, Hiatt J, Curran B, Sternick E. SU‐E‐T‐312: Optically Stimulated Luminescent Dosimeter Performance in High Dose Rate Brachytherapy Medical Physics 2012, 39: 3775-3775. PMID: 28517245, DOI: 10.1118/1.4735398.
  • SU‐E‐T‐204: Real‐Time Monitoring of Age‐Related Macular Degeneration Radiosurgery Using Plastic Scintillation DosimetryTien C, Cantley J, Hintenlang D, Bolch W, Firpo M, Chell E. SU‐E‐T‐204: Real‐Time Monitoring of Age‐Related Macular Degeneration Radiosurgery Using Plastic Scintillation Dosimetry Medical Physics 2011, 38: 3533-3533. DOI: 10.1118/1.3612154.
  • Construction of anthropomorphic phantoms for use in dosimetry studiesWinslow J, Hyer D, Fisher R, Tien C, Hintenlang D. Construction of anthropomorphic phantoms for use in dosimetry studies Journal Of Applied Clinical Medical Physics 2009, 10: 195-204. PMID: 19692982, PMCID: PMC5720556, DOI: 10.1120/jacmp.v10i3.2986.
  • SU‐FF‐I‐08: Ramping and Overscanning Contributions to Patient Dose in Helical CTTien C, Winslow J, Hintenlang D. SU‐FF‐I‐08: Ramping and Overscanning Contributions to Patient Dose in Helical CT Medical Physics 2009, 36: 2435-2436. DOI: 10.1118/1.3181127.
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