Non-contrast computerized tomography (NCCT) and dynamic renal scintigraphy (DRS) in the patients with refractory renal colic

In the emergency department, DRS combined with the results of clinical investigation may indicate candidates for hospitalization with emergency intervention. Immediate NCCT must be strongly considered in men with WBC ≥ 10 × 103 and calculi > 4 mm on the KUB.