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| Value of CT angiography of mesenteric vasculature in diagnosing the etiology of small bowel ischemia |
| PANG Min-xia |
| Department of CT, Central Hospital of Shengli Oilfield, Dongying Shandong 257034, China |
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Abstract Objective: To investigate the value of CT angiography(CTA) of mesenteric vasculature in diagnosing small bowel ischemia. Methods: CTA findings of mesenteric vasculature in 22 patients with small bowel ischemia were reviewed retrospectively. Twelve patients were classified as acute small bowel ischemia and other 10 as chronic. Analysis included presence or absence of stenosis, dilation, intraluminal filling defect, convergence, and displacement of mesenteric vasculature. Results: Of the 12 patients with acute small bowel ischemia, abrupt termination of superior mesenteric artery(SMA) was seen in 2 with SMA embolus, intraluminal filling defect seen in 5 with SMA thrombosis and 3 with mesenteric and portal venous thrombosis, formation of true and false lumen in 2 cases with dissection of SMA. Of the 10 patients with chronic small bowel ischemia, stenosis of SMA was seen in 4 of the 6 cases with atherosclerotic mesenteric ischemia, and occlusion of SMA complicated with Riolan’s arch seen in the other 2, dilation of proximal SMA in 2 cases of aneurysm of SMA, dilation and comblike pattern seen in 2 cases with systemic lupus erythematosis. Conclusion: Etiology of small bowel ischemia can be confirmed with CTA of mesenteric vasculature.
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Received: 26 September 2007
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2008, Vol. 19 
