Poster — Thurs Eve‐34: Extended CT‐range in RT planning of pelvic cancer treatment in presence of hip replacements

Extended CT range in conventional CT scanners has a potential to allow for a more conformal treatment of patients with hip prosthesis. Its use may limit inaccuracies in electron density maps that are observed due to severe artifacts in CT data. In this study, we investigate the use of CT images with extended CT numbers in dose calculations and compare the results of calculations with standard CT data and measured doses. A phantom containing a …