Ultrasound imaging to assess inter- and intra-fraction motion during bladder radiotherapy and its potential as a verification tool.

AIMS Organ motion is the principle source of error in bladder cancer radiotherapy. The aim of this study was to evaluate ultrasound bladder volume measurement as a surrogate measure of organ motion during radiotherapy: (1) to assess inter- and intra-fraction bladder variation and (2) as a potential treatment verification tool. MATERIALS AND METHODS Twenty… (More)