Useful prediction of ureteral calculi visibility on abdominal radiographs based on calculi characteristics on unenhanced helical CT and CT scout radiographs

Abstract

Ureteral calculi characteristics on UHCT and CTSR are useful for predicting their visibility on KUB. Patients with visible calculi on CTSR or non-middle ureteral calculi with density > 800 HU are suitable for KUB to follow-up calculi status.