The value of unenhanced CT in the diagnosis of acute appendicitis

The value of unenhanced CT in the diagnosis of acute appendicitis

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OBJECTIVE: To establish the accuracy of unenhanced CT in the preoperative diagnosis of acute appendicitis.DESIGN: Accuracy study, prospective and blinded.SETTING: The University Hospital.

PARTICIPANTS: 52 patients with clinical and laboratorial manifestations of simply southern cat shirt acute appendicitis.CT diagnosis was made by: presence of an abnormal appendix, appendiceal calculi with pericecal phlegmon or alterations in the pericecal appendicular site and absence of signs that may lead to other diagnosis.MAIN OUTCOME MEASURES: Overall accuracy, comparing the tomographic aspects with the intra-operative findings and pathological reports ("gold standard").

RESULTS: Acute appendicitis was confirmed in 44 cases.Efficacy was 92%, sensitivity was 91%, specificity was 100%, positive predictive value was 100% and negative predictive value was rb3519 replacement lenses 67%.CONCLUSIONS: Unenhanced CT presents a similar overall accuracy to that reported by other authors who studied enhanced CT diagnosis of acute appendicitis.