نتایج جستجو برای: dose volume histogram

تعداد نتایج: 619461  

Journal: :International journal of radiation oncology, biology, physics 2004
Susan L Tucker Lei Dong Rex Cheung Jennifer Johnson Radhe Mohan Eugene H Huang H Helen Liu Howard D Thames Deborah Kuban

PURPOSE To compare the fits of normal-tissue complication probability (NTCP) models based on rectal dose-wall histograms (DWHs) vs. dose-volume histograms (DVHs) when the two are used to analyze a common set of late rectal toxicity data. METHODS AND MATERIALS Data were analyzed from 128 prostate cancer patients treated with 3-dimensional conformal radiotherapy (3D-CRT) at The University of Te...

2017
Angelia Tran Kaley Woods Dan Nguyen Victoria Y. Yu Tianye Niu Minsong Cao Percy Lee Ke Sheng

BACKGROUND It is useful to predict planned dosimetry and determine the eligibility of a liver cancer patient for SBRT treatment using knowledge based planning (KBP). We compare the predictive accuracy using the overlap volume histogram (OVH) and statistical voxel dose learning (SVDL) KBP prediction models for coplanar VMAT to non-coplanar 4π radiotherapy plans. METHODS In this study, 21 liver...

Journal: :Journal of Instrumentation 2022

Abstract Background: in this study, two proton beam delivery designs, i.e. passive scattering therapy (PSPT) and pencil scanning (PBS), were quantitatively compared terms of dosimetric indices. The GATE Monte Carlo (MC) particle transport code was used to simulate the system; developed simulation engines benchmarked with respect experimental measurements. Method: a water phantom system energy p...

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