Abstract
A method to measure the effects of internal organ motion and deformation and patient setup error on cumulative dose variation in a volume of interest is proposed. The method uses multiple CT scans and electronic portal images of a single patient to numerically simulate dose-volume effects over the entire course of the patient's external beam treatment. The results are expressed in the form of a novel dose-volume histogram, called an expected dose-volume histogram (EDVH). (C) 2000 American Association of Physicists in Medicine.
Original language | English (US) |
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Pages (from-to) | 2100-2108 |
Number of pages | 9 |
Journal | Medical physics |
Volume | 27 |
Issue number | 9 |
DOIs | |
State | Published - Sep 2000 |
Externally published | Yes |
Keywords
- Dose-volume histogram
- Organ deformation
- Organ motion
- Setup error
- Stochastic processes
ASJC Scopus subject areas
- Biophysics
- Radiology Nuclear Medicine and imaging