Abstract
The aim of this study is to compare the positioning accuracy at different gantry angles of two electronic portal imaging devices (EPIDs) support arm systems by using EPID difference images as a measure for displacement. This work presents a comparison of the mechanical performance of eight Varian aS500 (Varian Medical Systems, Palo Alto, CA) EPIDs, mounted using either the Varian Exact-arm or R-arm.
| Original language | English |
|---|---|
| Pages (from-to) | 1707-13 |
| Number of pages | 7 |
| Journal | Medical Physics |
| Volume | 37 |
| Issue number | 4 |
| Publication status | Published - Apr 2010 |
Keywords
- Radiotherapy Planning, Computer-Assisted
- Radiation Dosage
- Equipment Design
- Computer Simulation
- Reproducibility of Results
- Radiometry
- Humans
- Particle Accelerators
- Electronics, Medical
- Radiotherapy
- Calibration