Comparison of Dynamic Contrast Enhanced CT and Diuretic Renogram in The Evaluation of UPJO

Comparison of Dynamic Contrast Enhanced CT and Diuretic Renogram in The Evaluation of Ureteropelvic Junction Obstruction

Renal blood flow is inversely related to obstruction. We propose that this imaging will be as effective as the diuretic renogram in the functional diagnosis of obstruction. Furthermore, dynamic contrast CT scanning may also add anatomic information necessary for the surgical treatment.

Inclusion Criteria:

• 18 years of age or older;
• Subjects suspected to have UPJO.

Exclusion Criteria:

• Pregnancy;
• Renal failure (Creatinine >150);
• Allergy to contrast material;
• Ureteral stent;
• Nephrostomy tube;
• Renal pelvis calculi.