The value of unenhanced CT in the diagnosis of acute appendicitis

Sao Paulo Medical Journal

Giuseppe D'ippolito¹  Giselle Guedes Netto De Mello¹  Jacob Szejnfeld¹ 

[1] ,Universidade Federal de São PauloSão Paulo,Brazil

关键词: Computerized tomography in appendicitis;    Computerized tomography of the digestive tract;    Computerized tomography;    Appendix;    Appendicitis;   

DOI  :  10.1590/S1516-31801998000600003

来源: SciELO

【 摘 要 】

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 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 67%.CONCLUSIONS: Unenhanced CT presents a similar overall accuracy to that reported by other authors who studied enhanced CT diagnosis of acute appendicitis.

【 授权许可】

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