Int J Radiat Oncol Biol Phys
October 2008
Purpose: To evaluate the prostate and seminal vesicle motion in patients during both simulation and radiotherapy by rectal gas removal.
Methods And Materials: A total of 34 patients were treated in a whole pelvic radiotherapy (WPRT) arm and 42 patients in a non-WPRT arm. Of the 76 patients, 42 (26 in the non-WPRT arm and 16 in the WPRT arm) were instructed to insert their index finger and wash their rectums to evacuate their rectal gas.