| Objective: Aims to evaluate the diagnostic accuracy of ComputedTomography in assessing of intestinal obstruction at presentation.Methods: From a comprehensive literature search in PubMed, Embase,Ovid Technologics, CNKI, CBM and WANFANG. The inclusion criteria wasformulated according to the Cochrane systematic review. Articles wereselected that investigated the Computed Tomography for evaluating theintestinal obstruction and met the inclusion criteria. Two reviewersindependently assessed the methodological quality of each study by using theQuality Assessment of Diagnostic Accuracy Studies tool (QUADAS). Thepresence of publication bias was assessed, and the heterogeneity was tested byusing STATA 11.0. The reported sensitivity and specificity of each study with95% confidence intervals (CIs) were performed, and calculated the pooledsensitivity, pooled specificity values including 95% CI. At last, drew aSummary receiver operator characteristic curve (SROC) and calculated thearea under the SROC.Results: Thirty-eight articles were included. The selected studies had agood methodological quality. The pooled sensitivity and pooled specificityincluding 95% CI were 0.90 (0.86-0.93), 0.91 (0.84-0.95) respectively indetection of the intestinal obstruction. The pooled sensitivity and pooledspecificity including 95% CI were 0.92 (0.85-0.96), 0.97 (0.78-1.00)respectively in diagnosis of complete or high-grade intestinal obstruction. The pooled sensitivity and pooled specificity including 95% CI were 0.85(0.76-0.92), 0.94 (0.90-0.97) respectively in diagnosis of ischemia orstrangulation intestinal obstruction.Conclusion: This study suggests the high sensitivity and specificity ofCT for detection of intestinal obstruction and diagnosis of complete orhigh-grade intestinal obstruction. And demonstrates that CT is a reliableimaging approach to reflect ischemia or strangulation intestinal obstructionthat be considered as surgical candidates. |
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