Search results for "78 Gy"

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Impact of rectal distension on prostate CBCT-based positioning assessed with 6 degrees-of-freedom couch

2018

International audience; Introduction: Prostate requires a daily correction of its 3-dimensional position in relation with rectal distension. In this study, we sought to determine whether rectal distension with respect to the rectal behavior might have an impact on prostate translations and/or rotations during prostate image guided radiation therapy using a 6 degrees-of-freedom (DOF) couch.Methods and materials: We reviewed the data from 39 patients with localized prostate cancer treated with protracted external radiation therapy using a 6 DOF couch. Before each fraction, a kilovoltage cone beam computed tomography (kV-CBCT) scan was performed. The automatic fusion algorithm was set to fuse …

MaleKilovoltage Cone Beam Computed Tomography[SDV.IB.IMA]Life Sciences [q-bio]/Bioengineering/Imagingmedicine.medical_treatment78 GyFailureRectum[SDV.CAN]Life Sciences [q-bio]/Cancer[SDV.IB.MN]Life Sciences [q-bio]/Bioengineering/Nuclear medicineIncreased RiskStandard deviationPatient PositioningTrial030218 nuclear medicine & medical imaging03 medical and health sciencesProstate cancer0302 clinical medicineProstatemedicineHumansRadiology Nuclear Medicine and imagingConformal Radiation-TherapyImage-guided radiation therapyCancerContouringbusiness.industryImage-GuidanceRadiotherapy Planning Computer-AssistedAcute ToxicityProstateRectumProstatic NeoplasmsRadiotherapy DosageExternal-Beam RadiotherapyCone-Beam Computed Tomographymedicine.diseaseRadiation therapymedicine.anatomical_structureOncology030220 oncology & carcinogenesisFeasibility StudiesRadiotherapy Intensity-ModulatedStrategiesbusinessNuclear medicineTomography X-Ray ComputedRadiotherapy Image-Guided
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