The Gold Standard in Veterinary Imaging Diagnostic Evaluation
Ureteral stones can obstruct urine outflow, leading to hydronephrosis and discomfort. Imaging aims to localize obstruction, confirm stone presence or surrogate changes, and evaluate kidney function. CT is most sensitive for stone detection and anatomical mapping, especially for radiolucent stones. Ultrasound can detect hydronephrosis and ureteral dilation. Radiographs may detect radiopaque calculi but can miss others. MRI is uncommon for stone detection. Nuclear studies are adjunctive for renal function when needed.