Abstract: ［Abstract］ Objective〖HTSS〗〓To investigate the value of multislice spiral computed tomography（MSCT） applying in the diagnosis of nonneoplastic obstruction in the small intestine.
〖HTH〗〖WTHZ〗Methods〖HTSS〗〓MSCT data of 13 patients with nonneoplastic obstruction in the small intestine confirmed by surgery in our hospital. The causes of obstruction and MSCT features were analyzed.
〖HTH〗〖WTHZ〗Results〖HTSS〗〓Among the 13 patients with nonneoplastic obstruction in the small intestine, 5 cases of obstruction were caused by bezoar, 5 cases of obstruction were caused by gallstones, 2 cases of obstruction were caused by ascaris and 1 case of obstruction was caused by metallic foreign bodies. In the 5 patients with obstruction caused by bezoar, 2 patients were combined with gastric bezoar. In the 5 patients with obstruction caused by gallstones, 3 patients had biliaryintestinal fistula and 2 had biliarygastric fistula. Seroperitoneum was found in 8 patients, with a small amount of effusion in 5 patients and a moderate amount of effusion in 3 patients. Nonneoplastic obstruction in the small intestine showed characteristic MSCT manifestations: obstruction caused by gallstones presented highdensity shadow in “concentric circles”， obstruction caused by bezoar presented “bubble sign” and “cork sign”， obstruction caused by ascaris presented “noodlesection sign”， obstruction caused by metallic foreign bodies presented “bubble sign” accompanied by metal artifacts. Accurate etiological analysis was obtained preoperatively in 12 surgeries for nonneoplastic obstruction in the small intestine(accuracy, 92.3%). Due to respiratory motion artifacts, 1 patient with obstruction caused by ascaris was preoperatively misdiagnosed as obstruction caused by bezoar.
〖HTH〗〖WTHZ〗Conclusion〖HTSS〗〓Mastering the MSCT performance of nonneoplastic obstruction in the small intestine is of great significance to improve the etiological analysis and clinical treatment of nonneoplastic obstruction in the small intestine.

Key words: intestinal obstruction； nonneoplastic lesion, tomography, spiral computed