294-295 / 1332
20 rectal cancer patients
5 US – based measurements of bladder V before and during treatment
Initial V: 417 (147 – 1.245) ml
Week 6 V: 157 ml (60 % reduction)
Average reduction per week: 161 ml (38 %)
Chang JS, et al. Radiat Oncol 2013
Organ filling