Task: Answer Verification
Input (English): Question: Are routine preoperative restaging CTs after neoadjuvant chemoradiation for locally advanced rectal cancer low yield : a retrospective case study?
Answer: Because of the financial costs and established risks of intravenous contrast and cumulative radiation exposure, it may be advisable to take a more selective approach to preoperative imaging. Larger, prospective studies may enable identification of an at-risk cohort who would benefit most from restaging CT.
Output (English): yes