To explore the CT features of ischemic colitis and improve the diagnostic accuracy of the disease.

A total of 21 pPatients with 21 cases of ischemic colitis confirmed by CT, enteroscope, pathology and clinical comprehensive diagnosis were analyzed retrospectively from May 2012 to March 2017 in Xijing Hospital of Fourth Military Medical University.The patients were divided into collected by colonoscopy, pathology and clinical comprehensive diagnosis, and there were 7 cases of acute group and 14 cases of non-acute group according to the time from onset to CT examination.The CT features of CT were analyzed retrospectively.

Ischemic colitis is was most frequently involved in the left colon.The CT features During of the acute phase were as follows compared with, the CT features of the non-acute phase characteristic were: diffuse swelling of the intestinal wall(16.4±5.5 vs.7.6±3.9, P=0.000), the stratification of the intestinal wall(100% vs.36%, P=0.007)and the intestinal canal exudes(100% vs.14%, P=0.001). There were noAll patients did not see the superior mesenteric artery and the submesenteric artery thrombosis.But about 33% of the patients had narrow or truncated branchs.

The CT manifestations of ischemic colitis have certain characteristics, especially acute phase lesions.The summary and mastery of these features can improve the accuracy of diagnosis.