IMRT

Summary RECTUM: dose-volume response relationships • Late rectal bleeding: serial description • DVH/NTCP description: consistent (10 3 pat) • Abdominal/pelvic surgery- important predictor, modified dose-volume constraints and NTCP

• Foecal incontinence: seems parallel • V40, D mean best predictors • Clinical predictors important • Longitudinal definitions of the endpoints • Spatial aspects?