The role of CT in acute mesenteric ischemia
نویسندگان
چکیده
Results Only 12 patients (37.5%) performed a preoperative diagnostic CT study, whereas in 20 cases (62.5%) the intestinal ischemia was diagnosed during surgical exploration. The acute mesenteric ischemia caused primarily by occlusive superior mesenteric artery in 26 cases (81.2%) and by venous thrombosis in 6 cases (18.7%). Most of the embolus are located approximately 3–10 cm from superior mesenteric artery emergence. An arterial embolus can be detected like filling defect or like an abrupt interruption of vascular enhancement. Frequently a secondary venous thrombosis follows the arterial occlusion. CT shows a moderate intestinal wall thickening and inclusions in air signs of intestinal gangrene. Only 19 (59.3%) of 32 patients survived the acute intestinal ischemia (in hospital mortality was 40.6%), delayed diagnostic and operation caused higher mortality. In 12 cases a preoperative diagnostic CT was performed the mortality was 32.5%.
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