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Title: Sensitivity and specificity of ultrasound in the diagnosis of acute appendicitis
Authors: Al Ajerami, Y.
Issue Date: 2012
Language: English
Abstract: The aim of this study was to evaluate the sensitivity and specificity of ultrasound in the diagnosis of acute appendicitis at Al-Shefa hospital, Gaza Strip, Palestine. Patients who had appendicitis diagnosed by ultrasound over the study period [n = 180] underwent surgical excision of the appendix. The negative appendectomy rate was low, with only 4.4% [8/180] false positives. A significantly higher false diagnosis rate [False negatives + false positives] was obtained in female patients than in males: 38.5% versus 6.2%. A high proportion of falsely diagnosed cases had abnormal weight [overweight or obese] [82.1%]. The overall sensitivity and specificity of ultrasound, using surgical outcome as the gold standard, were 84.8% and 83.3% respectively, and the positive and negative predictive values were 93.3% and 66.7% respectively. Sensitivity and specificity were higher in males [95.7% and 88.2% respectively] than females [84.6% and 71.4% respectively]
Description: 66-69
Keywords: Appendicitis
Sensitivity and Specificity
Relative Value of Tests
Subject: Appendicitis
ISSN: 1020-3397
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Appears in Collections:EMRO Journal Articles (EMHJ)

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