Endoscopic ultrasonography (EUS) was performed in 23 patients with ischemic colitis and in 10
normal controls. The features were compared in these two groups, and the results from the two
groups were compared. At onset the, thickening of the third layer with changes of echogenicity was
observed in all of the patients, and thickening of the fourth layer was also observed in 20 of 23
patients. Thickning in 3 patients in whom marked thickening of the bowel wall had been observed at
onset was later classified of stricturing form, and in 2 of them thickening of the bowel wall was still
apparent 2 weeks after onset. We consider EUS to be a useful method for predicting the prognosis of
ischemic colitis in its earlv phase.