2017
Dose-Volume Predictors of Esophagitis After Thoracic Stereotactic Body Radiation Therapy
Harder 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.Peer-Reviewed Original ResearchMeSH KeywordsAgedDose-Response Relationship, RadiationEsophagitisFemaleFollow-Up StudiesHumansLung NeoplasmsMaleRadiation InjuriesRadiosurgeryRadiotherapy DosageConceptsStepwise selection techniqueRadiation therapyThoracic stereotactic body radiation therapyStereotactic hypofractionated radiation therapyStereotactic body radiation therapyDose-volume predictorsNormal tissue complication probabilityHypofractionated radiation therapyMultivariate logistic regressionProbability estimatesBody radiation therapyPlanning target volumeEsophageal toxicityEsophagitis ratesCTCAE v4.0Dosimetric predictorsPulmonary tumorsInstitutional databaseRadiotherapy parameters
2013
Acute toxicity and risk of infection during total skin electron beam therapy for mycosis fungoides
Lloyd 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.Peer-Reviewed Original ResearchMeSH KeywordsAcute DiseaseAdultAge FactorsAgedAnalysis of VarianceCohort StudiesDermatomycosesDose Fractionation, RadiationDose-Response Relationship, RadiationElectronsFemaleHumansIncidenceMaleMiddle AgedMultivariate AnalysisMycosis FungoidesNeoplasm InvasivenessNeoplasm StagingPrognosisRadiodermatitisRadiotherapy DosageRetrospective StudiesRisk AssessmentSeverity of Illness IndexSex FactorsSkin Diseases, BacterialSkin NeoplasmsWhole-Body IrradiationConceptsTotal skin electron beam therapyMycosis fungoidesSkin infectionsElectron beam therapyAcute toxicityBeam therapyAcute treatment toxicityRetrospective study designIncidence of infectionRisk of infectionCommon toxicitiesTreatment toxicityCutaneous infectionsSkin painBaseline incidenceToxicity gradeGrade 3Modern seriesGrade 2Grade 1Consecutive coursesFungoidesInfectionStudy designGrade 4
2007
On the Need to Compensate for Edema-Induced Dose Reductions in Preplanned 131Cs Prostate Brachytherapy
Chen 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.Peer-Reviewed Original ResearchMeSH KeywordsAlgorithmsBrachytherapyCesium RadioisotopesDisease-Free SurvivalDose-Response Relationship, RadiationEdemaHumansMaleProstatic DiseasesProstatic NeoplasmsRadiotherapy DosageRelative Biological EffectivenessTime FactorsConceptsDose reductionProstate brachytherapyDose compensationLarge edemaBiochemical recurrence-free survivalRecurrence-free survivalSignificant dose reductionEffects of edemaSublethal damage repairAdditional irradiationPrescription doseProstate cancerIndividual patientsEdemaEdema evolutionPrescribed doseProstate edemaEffective doseRadiobiologic effectsBrachytherapyDoseProstate implantsDose responseImplants
2006
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: 56-59. PMID: 16772305, DOI: 10.1093/rpd/ncj007.Peer-Reviewed Original ResearchEvaluation 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: 159-162. PMID: 16644932, DOI: 10.1093/rpd/ncj006.Peer-Reviewed Original ResearchConceptsEDR-2 filmsElectron beamRelative dosimetryHigh-energy photonsClinical radiation dosimetryDose profilesPhotonsRadiation dosimetryBeamDose distributionRadiographic filmsSensitometric studyFilmsDosimetryTreatment planning techniquesElectronsDiodesSymmetryKVFlatnessPlanning techniquesDistribution
2005
Relative Biological Effectiveness of 103Pd and 125I Photons for Continuous Low-Dose-Rate Irradiation of Chinese Hamster Cells
Nath 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.Peer-Reviewed Original ResearchMeSH KeywordsAnimalsCell SurvivalCHO CellsCricetinaeDose-Response Relationship, RadiationIodine RadioisotopesLinear Energy TransferPalladiumPhotonsRadioisotopesRelative Biological EffectivenessConceptsContinuous low doseRate irradiationDose-rate effectInverse dose-rate effectCGy/hInitial dose rateChinese hamster lung cellsHigher initial dose rateLow doseHamster lung cellsLung cellsDose rateCell survivalX-ray beamRelative biological effectivenessChinese hamster cellsCellsImplantsAverage RBEHamster cellsBiological responsesBiological effectivenessMonoenergetic X-ray beamDose 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
Nath 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.Peer-Reviewed Original ResearchMeSH KeywordsAnimalsCell Line, TumorCell SurvivalDose Fractionation, RadiationDose-Response Relationship, RadiationPalladiumRadioisotopesRadiometryRadiotherapy DosageRatsRelative Biological EffectivenessRhabdomyosarcomaTreatment OutcomeConceptsContinuous low dose rate irradiationDose rate irradiationLow dose rate irradiationRate irradiationInterstitial brachytherapyHigh dose rate irradiationAcute exposureRhabdomyosarcoma cellsPermanent interstitial brachytherapyRelative biological effectivenessBA1112 tumorsSame dose rateSurvival curvesHigh linear energy transferAcute irradiationTumor cellsCell survival curvesBiological effectivenessLow dose rateDose-rate effectDose rateBrachytherapy
2004
Iodine 125 Versus Palladium 103 Implants for Prostate Cancer
Peschel 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.Peer-Reviewed Original ResearchMeSH KeywordsAcademic Medical CentersAgedBrachytherapyDisease-Free SurvivalDose-Response Relationship, RadiationHumansIodine RadioisotopesMaleMiddle AgedPalladiumPrognosisProstatic NeoplasmsRadiation DosageRadioisotopesRisk FactorsTreatment OutcomeConceptsExternal beam radiation therapyMinimum tumor doseDisease-free survival ratesComplication rateTumor doseProstate cancerRadiation therapyClinical outcomesPrognostic groupsBiochemical disease-free survival ratesSurvival rateBiochemical disease-free survivalDisease-free survivalHigh complication ratePoor prognostic groupProstate-specific antigenHormonal therapyT stageGleason scoreSingle institutionTransperineal implantationFavorable groupGrade 3Treatment groupsPatients