CT diagnosis of intestinal necrosis caused by mesenteric ischemia        REN Ke, CHAI Rui-mei. Department of Radiology, the First Affiliated Hospital of China Medical University, Shenyang 110001, China
Corresponding author：REN Ke, E-mail：renke815@sina.com
Abstract    Acute mesenteric ischemia can cause a severe and rapid-progressed necrosis of bowel. Therefore，early detection of acute mesenteric ischemia is extremely important. Enhanced CT is the most effective method. It could depict embolization of superior mesenteric artery at arterial phase，and superior mesenteric vein at portal phase. The bowel necrosis performs as swelling，thickening and attenuating of the relevant intestinal wall，even discontinuity of the serosa at severe condition. The characteristic sign is small air-bubbles under the mucosa.