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| The diagnostic value of double filling method in CT angiography in the diagnosis of#br#
obscure gastrointestinal bleeding in the large and small intestine |
| Department of Imaging, the People’s Hosptial of Yangzhong, Yangzhong Jiangsu 212200, China |
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Abstract Objective: To investigate the diagnostic value of double filling method in CT angiography in the diagnosis of obscure gastrointestinal bleeding(OGIB) in the large and small intestine. Methods: Retrospective analysis of 30 patients from clinical data with OGIB, all cases underwent the intestinal double filling method CT. Results: There were 5 cases of malignant tumor, 4 cases of small intestinal stromal tumor, and 1 case of lipoma, furthermore coarse vascular malformation was found in 4 cases, telangiectasia in 2 cases, inflammatory bowel disease in 5 cases, intestinal polyps in 3 cases, superior mesenteric artery thrombosis formation in 2 cases, mesenteric venous thrombosis formation in 1 case, diverticulum in 2 cases, heterotopic pancreas in 1 case. Ten cases were confirmed by operation and pathology, 6 cases confirmed by capsule endoscopy, 4 cases of vascular lesions confirmed by DSA, and the other 10 cases of intestinal CT were consistent with clinical diagnosis. The diagnostic accuracy rate of CT was 73.3% in this group by using the small intestine double filling method in this group. Omission lesions included 2 cases of vascular malformation, 2 cases of capillary dilatation, 2 cases of small polypoid lesions, 2 cases of intestinal mucosal hyperaemia erosion. The reason was that the expansion of the blood vessels is small, small polyps and intestinal mucosa was difficult to distinguish, the superficial mucosal lesions was not sensitive. Conclusion: The large and small intestine double filling bowel CT angiography on the positioning of OGIB, qualitative diagnosis and guiding clinical formulation treatment has important clinical value, but it is likely to be misdiagnosed by shallow table mucosa lesions and vascular lesions.
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Received: 22 July 2015
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Corresponding Authors:
DU Guo-zhong
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