The use of low-dose CT scanning

Abstract

Imaging modalities such as ultrasound do not have the sensitivity and speci fi city of computed tomography (CT) scan in the accurate assessment of urolithiasis. However, concerns regarding the exposure of patients to multiple investigatory CT scans, given the radiation exposure associated with such examinations, have led to de fi nition of protocols that reduce radiation exposure while achieving similar diagnostic ef fi ciency as standard CT scanning. With improved CT protocols using the information obtained during a CT scan, less radiation is required to provide adequate information on urinary stone disease.