References
1. Unenhanced Helical CT of Ureteral Stones: A Replacement for
Excretory Urography in Planning Treatment  Fielding JR et al. AJR
1998; 171:1051-53
2. Pearls and Pitfalls in the Diagnosis of Ureterolithiasis with
Unenhanced Helical CT Dalrymple NC et al. Radiographics 2000;
20: 439-447
3. Diagnosis of acute flank pain: Value of unenhanced Helical CT,
Smith RC, et al. AJR 1996: 96-101
4. Ureteral calculi: Diagnostic Efficacy of Helical CT and Implications
for Treatment for Patients, Boulay IC et al. Radiology 1999; 211:
619-621
5. Alternative or additional diagnoses on unenhanced helical
computed tomography for suspected renal colic: experience with
1000 consecutive examinations. Urology 2000; 56:53-57