Search results for "Absolute volume"

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Absolute volume of the rectum and AUC from rectal DVH between 25Gy and 50Gy predict acute gastrointestinal toxicity with IG-IMRT in prostate cancer

2016

International audience; Background: To determine whether dose/volume specific endpoints (DVSE) or Area under the rectal DVH curve (rAUC) better predict acute gastrointestinal (GI) toxicity in prostate cancer patients treated with IMRT in the era of daily image guidance (IG-IMRT). Methods: A set of DVSE was recorded from V25 to V75 (increments of 5Gy) (both in % and in cc) for 180 men. The rAUC was calculated for doses ranging between 25Gy and 50Gy (rAUC(25-50)). Univariate and multivariate logistic regressions were performed to determine the relationship between DVSE or rAUC(25-50) and the appearance of any acute GI toxicity. Results: The rates of acute grade 1 (G1), G2 and G3 GI toxicities…

OncologyMale[SDV.IB.IMA]Life Sciences [q-bio]/Bioengineering/Imagingmedicine.medical_treatmentGastroenterology030218 nuclear medicine & medical imaging[ SDV.CAN ] Life Sciences [q-bio]/Cancer[ SDV.IB.MN ] Life Sciences [q-bio]/Bioengineering/Nuclear medicineProstate cancer0302 clinical medicineProstateLarge intestineConformal Radiation-Therapy[ SDV.IB.IMA ] Life Sciences [q-bio]/Bioengineering/ImagingAged 80 and overGastrointestinal tractProstate cancerRadiotherapy DosageMiddle Aged3. Good healthmedicine.anatomical_structureImpactOncologyRadiology Nuclear Medicine and imaging030220 oncology & carcinogenesisArea Under CurveToxicityImage Guidancemedicine.medical_specialtyRectum[SDV.CAN]Life Sciences [q-bio]/Cancer[SDV.IB.MN]Life Sciences [q-bio]/Bioengineering/Nuclear medicine03 medical and health sciencesInternal medicinemedicineBiochemical ControlHumansRadiology Nuclear Medicine and imagingRadiation InjuriesAgedRadiotherapybusiness.industryResearchRectumProstatic Neoplasmsmedicine.diseaseRadiation therapyAcute rectal toxicity predictive factorLogistic ModelsRadiotherapy Intensity-ModulatedbusinessAbsolute volumeRadiation Oncology (London, England)
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