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  • Title: Suspected appendicitis in children: focused CT technique for evaluation.
    Author: Fefferman NR, Roche KJ, Pinkney LP, Ambrosino MM, Genieser NB.
    Journal: Radiology; 2001 Sep; 220(3):691-5. PubMed ID: 11526268.
    Abstract:
    PURPOSE: To determine the accuracy of a focused computed tomographic (CT) technique with oral and intravenous contrast materials for the diagnosis of appendicitis. MATERIALS AND METHODS: Ninety-three abdominal-pelvic contrast material-enhanced CT scans obtained during 6 years in 54 girls and 39 boys (age range, 1-18 years) with right lower quadrant pain were retrospectively reviewed. The detected abnormal findings were recorded as being in the region above the upper pole of the right kidney, between the upper pole of the right kidney and the lower pole of the right kidney (RLP), or below the iliac crest. Sensitivity, specificity, and positive and negative predictive values were calculated. chi(2) analysis was performed to determine whether there were significant differences among patient groups according to region of detected disease. RESULTS: Fifty-five scans were abnormal: 38 showed appendicitis; and 17, other diseases. No scans, except two that showed pneumonia, had key findings above the RLP. Nineteen scans showed key findings between the RLP and the iliac crest. Thirty-three scans had diagnostic findings only below the iliac crest. The sensitivity (97%), specificity (93%), positive predictive value (90%), and negative predictive value (98%) of interpretation with all images for the diagnosis of appendicitis were the same as those of interpretation with only the focused images. CONCLUSION: CT performed to diagnose appendicitis can be limited to the region below the RLP.
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