2015
Concomitant Imaging Dose and Cancer Risk in Image Guided Thoracic Radiation Therapy
Zhang 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.Peer-Reviewed Original ResearchMeSH KeywordsAdolescentAdultAge FactorsAgedAged, 80 and overAorta, ThoracicBody SizeBreastChildChild, PreschoolCone-Beam Computed TomographyFemaleHeartHumansLungMaleMiddle AgedMonte Carlo MethodOrgans at RiskPhantoms, ImagingPhotonsPrecision MedicineProtonsRadiation DosageRadiography, ThoracicRadiotherapy, Image-GuidedRisk AssessmentSex FactorsSpinal CordThoracic WallThoraxConceptsConcomitant imaging doseThoracic radiation therapyCancer riskRadiation therapyMean dosesCardiac substructuresKilovoltage cone-beamImaging doseAdverse eventsPediatric patientsMedian dosesCancer patientsRight ventricleExtra radiation doseSpinal cordHigh dosesPatientsCone beamPlanning CT imagesChest dimensionsDosesPatient sizeImaging guidanceTherapyDose
2011
Testicular Doses in Image-Guided Radiotherapy of Prostate Cancer
Deng 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.Peer-Reviewed Original ResearchConceptsImage-guided radiotherapyTesticular dosesFull-fan modeProstate cancerFemoral headLess doseCBCT scansHalf-fan modeProstate cancer patientsKilovoltage cone-beamCancer patientsIntensity-modulated radiotherapy (IMRT) treatmentKilovoltage CBCTSuperior-inferior directionCone beamDosesCBCT fieldProstate patientsRectumDoseProstateMore doseRadiotherapy treatmentPatientsRadiotherapyKilovoltage Imaging Doses in the Radiotherapy of Pediatric Cancer Patients
Deng 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.Peer-Reviewed Original ResearchConceptsPediatric cancer patientsCancer patientsTesticular shieldingSpinal cordKilovoltage cone-beamCBCT dosesMean dosesClinical conditionsDose reductionLarge dosesFemoral headPatientsCBCT scansCone beamDosesFull-fan modeOptical nerveCBCT fieldCordDose increaseImaging dosesScanning protocolOARsRadiotherapyHalf-fan mode
2009
AAPM recommendations on dose prescription and reporting methods for permanent interstitial brachytherapy for prostate cancer: Report of Task Group 137
Nath 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.Peer-Reviewed Original ResearchConceptsBiological equivalent doseTumor volumeDose prescriptionStandard of careProstate cancer patientsPermanent interstitial brachytherapyAcute single dosesEffects of edemaCancer patientsSurgical traumaIntraoperative implantationSingle dosesClinical trialsProstate cancerRadiobiological modelsCurrent recommendationsInterstitial brachytherapyMore specific guidelinesRoutine patient treatmentsDifferent dose distributionsTreatment planPatient treatmentTarget volumeMost implantsDose distribution
2004
A technique to re-establish dose distributions for previously treated brain cancer patients in external beam radiotherapy
Yue 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.Peer-Reviewed Original ResearchConceptsPrevious treatmentCurrent treatmentTreatment planPrevious treatment sessionTime of reirradiationCurrent treatment planExternal beam radiotherapyBrain cancer patientsNew treatment planPatient coordinate systemDose distributionPatient anatomyCancer patientsTumor recurrenceCurrent patient anatomyBeam radiotherapyNew tumorsTreatment sessionsTreatment dose distributionsIsocenter coordinatesPatient positionNew patient anatomyBrain treatmentCollimator anglesRadiotherapy treatment
1999
Long‐term complications with prostate implants: Iodine‐125 vs. palladium‐103
Peschel 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.Peer-Reviewed Original ResearchMeSH KeywordsActuarial AnalysisBrachytherapyCell DeathFollow-Up StudiesForecastingHumansIodine RadioisotopesLongitudinal StudiesMaleModels, BiologicalNeoplasm StagingPalladiumProbabilityProstatic NeoplasmsRadioisotopesRadiopharmaceuticalsRadiotherapy DosageRelative Biological EffectivenessRetrospective StudiesTreatment OutcomeConceptsLong-term complicationsMinimum tumor dosesComplication ratePd-103Lower overall complication ratePalladium-103Long-term complication rateIodine-125Overall complication rateHigh complication rateProstate cancer patientsProstate implantsActuarial probabilityGrade IIILog10 cell killCancer patientsVs. 6Tumor dosesClinical practiceCell killProstate cancer brachytherapyEffective doseNormal tissuesPatientsTissue beds
1998
Correlation of medical dosimetry quality indicators to the local tumor control in patients with prostate cancer treated with iodine‐125 interstitial implants
Nath 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.Peer-Reviewed Original ResearchConceptsSurvival rateProstate cancerInterstitial implantsLocal recurrence-free survival rateRecurrence-free survival ratesLocal control rateLocal tumor controlExcellent clinical resultsProstate cancer patientsUnfavorable groupClinical efficacyCancer patientsControl rateTumor controlClinical resultsFavorable groupDose coveragePatientsDosimetric parametersDosimetry parametersIsodose surfaceSignificant differencesVirginia studyUnfavorable parametersCancer