Navegando por Palavras-chave "Computerized tomography"

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    The value of unenhanced CT in the diagnosis of acute appendicitis
    (Associação Paulista de Medicina - APM, 1998-11-01) D'Ippolito, Giuseppe [UNIFESP]; Mello, Giselle Guedes Netto de [UNIFESP]; Szejnfeld, Jacob [UNIFESP]; Universidade Federal de São Paulo (UNIFESP)
    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.