Eric Barnes, Aunt Minnie, reported on January 30, 2013 — PET/CT results can predict which patients will respond to high-dose-rate endorectal brachytherapy for stage II and III rectal cancer, according to a study presented at the American Society of Clinical Oncology (ASCO) Gastrointestinal Cancers Symposium. The results could pave the way for easier treatments and better outcomes.