2017
Incorporating patient-specific CT-based ophthalmic anatomy in modeling iodine-125 eye plaque brachytherapy dose distributions
Tien 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.Peer-Reviewed Original ResearchConceptsEye modelDisc distanceDose differenceTumor apexPrescription doseOcular parametersPlaque SimulatorOcular structuresSubstantial dose differencesTarget volumePlaque positionDosimetric parametersPatientsClinical planningDosimetric impactSignificant differencesBrachytherapy planningSeed strengthPlaquesBrachytherapy dose distributionsDose distributionPatient-specific modelsDifferencesTumorsRetina
2014
SU‐E‐T‐518: Dosiemtric Impact of Patient Positioning Uncertainty in SBRT Treatments
Abbas 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.Peer-Reviewed Original ResearchPatient positioning uncertaintiesDosimetric impactSuperior-inferior directionTreatment planLung SBRTCourse of treatmentSpine SBRT patientsOriginal treatment planLung doseCertain patientsAnterior-posterior positionPractice guidelinesIsocenter positioningSBRT treatmentSBRT patientsMinimum doseMaximum doseSBRTPatientsDoseMinimal dosimetric impactSpine SBRTProstateMonitor unitsTreatment planning system
2009
Impact of Kilo-Voltage Cone Beam Computed Tomography on Image-Guided Radiotherapy of Prostate Cancer
Deng J, Chen Z, Nath R. Impact of Kilo-Voltage Cone Beam Computed Tomography on Image-Guided Radiotherapy of Prostate Cancer. IFMBE Proceedings 2009, 25/1: 17-20. DOI: 10.1007/978-3-642-03474-9_5.Peer-Reviewed Original ResearchKilo-voltage cone beamProstate cancerImage-guided radiotherapyDosevolume histogramsExcessive dosesCone beamFemur headAdjacent critical structuresPatient anatomyTesticular doseCBCT dosesTesticular dosesImage-guided radiation therapyRadiation therapyMost dosesSuperior-inferior directionDVH analysisCritical organsCancerDosesIGRT treatmentReal patient anatomyDosimetric impactScanning protocolPosterior side