期刊
JOURNAL OF GASTROINTESTINAL SURGERY
卷 9, 期 5, 页码 690-694出版社
SPRINGER
DOI: 10.1016/j.gassur.2004.10.006
关键词
bowel obstruction; computed tomography; sensitivity and specificity; ischemia/diagnosis
This review was designed to describe the diagnostic performance of computed tomography (CT) in assessing bowel ischemia and complete obstruction in small bowel obstruction (SBO). A MEDLINE search (1966-2004) identified 15 studies dealing with the CT diagnosis of ischemia and complete obstruction in SBO. Ischemia was defined by operative findings, and complete obstruction was defined by enteroclysis or operative findings. Aggregated sensitivity, specificity, and positive and negative predictive values (PPV and NPV) were calculated. Eleven of 15 studies reported on the CT diagnosis of ischemia in SBO based on 743 patients. The aggregated performance characteristics of CT for ischemia in SBO were sensitivity of 83 % (range, 63-100%), specificity of 92 % (range, 61-100%), PPV of 79% (range, 69-100%), and NPV of 93% (range, 33.3-100%). Seven of 15 studies evaluated the CT classification of complete obstruction based on 408 patients. The aggregated performance characteristics of CT for complete obstruction were sensitivity of 92% (range, 81-100%), specificity, of 93% (range, 68-100%), PPV of 91% (range, 84-100%), an NPV of 93% (range, 76-100%). This review demonstrates the high sensitivity of CT for ischemia in the setting of SBO and suggests that a CT scan finding of partial SBO is likely to reflect a clinical condition that will resolve without surgical intervention. (c) 2005 The Society for Surgery of the Alimentary Tract.
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