2018 Volume 38 Issue 6 Pages 959-963
【Background】The pathogenesis of small bowel strangulation (SBS) is a bowel blood─flow disorder, and non-necrotic SBS is SBS with an incomplete blood-flow disorder. Contrast enhanced CT (CECT) is promising for the diagnosis. However, it remains unclear which findings of CECT are useful for the diagnosis of non-necrotic SBS. 【Methods】Study patients included 29 patients with necrotic SBS and 48 patients with non-necrotic SBS. 【Results】We found intestinal wall thickness and mesenteric edema in over 70％ of the patients with both necrotic and non-necrotic SBS. Disappearance of Kerckring’s folds, bowel hypoenhancement and hemorrhagic ascites were identified as independent risk factors indicating necrotic SBS. Hypoenhancement of the bowel wall was found in 55％ of patients with necrotic SBS and 4％ of non-necrotic SBS. 【Discussion】For accurate diagnosis of non-necrotic SBS, we should pay attention not so much to hypoenhancement of the bowel wall but bowel wall thickness and mesenteric edema.