First Report of the Clinical Use of a Commercial Automated System for Daily Patient QA Using EPID Exit Images.

ABSTRACT:

Purpose

To characterize the clinical utility of a new commercially available system for daily patient treatment quality assurance using electronic portal imaging detector (EPID) exit dose images.

Methods and materials

The PerFRACTION automated quality assurance system was used to acquire integrated EPID images for every field every day for 60 treatment courses for 57 patients. Four thousand seventy-nine field values from 855 fractions were analyzed. Gamma passing rates were computed by the system for each field daily. Passing rates and pass-fail status were recorded by treatment modality (intensity modulated radiation therapy or 3-dimensional conformal radiotherapy) and location. When failures occurred, an attempt was made to determine the reason.

Results

Overall, 23%

SUBMITTER: Olch AJ 

PROVIDER: S-EPMC6817722 | biostudies-literature | 2019 Oct-Dec

REPOSITORIES: biostudies-literature