What is Electronic Portal Imaging Devices (EPID)?
Submitted by: Muhammad
A system producing near real-time portal images on a computer screen for evaluation. This is attached to the linear accelerator and is composed of amorphous Silicon (aSi) crystals. They receive MV x-rays that images the patients setup and is used to compare to the DRR's from the Treatment Planning System (TPS). These are done almost universally on all patients now.
Submitted by: Muhammad
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