Validation of Low Dose CT for Diagnosis of Urolithiasis

Validation of an Extremely Low Dose Computed Tomography Protocol for Diagnosing Urolithiasis in Children and Young Adults

The investigators have developed an extremely low dose renal computed tomography (CT) protocol that on preliminary testing has an effective dose in the range of a single view abdominal radiograph. The investigators plan to test this exam in patients with known or suspected urolithiasis undergoing clinically indicated CT.

Inclusion Criteria:

• Pediatric and young adult patients (ages 4 to <21 years)
• Known or suspected urolithiasis
• Undergoing clinically indicated CT of the abdomen/pelvis

Exclusion Criteria:

• Pregnancy
• Prior enrollment in the same study (no patient will be enrolled more than once)