肠梗阻是普外科常见的急腹症,其病因很多。单纯依靠平片、腹透和临床表现、体征做出病因诊断有一定困难。我院自1996年4月～1998年12月利用CT对53例急性小肠梗阻病人进行病因分析诊断,取得较好的效果。 1 临床资料 1.1 一般资料:本组53例病人,男39例,女24例,年龄1～78岁,中位年龄47岁。以不同程度的腹痛、腹胀、恶心、呕吐、停止排气排便为主诉,在发病6～29小时内入院。所有病人都已确诊为肠梗阻。 1.2 方法:在CT扫描前口服或经胃管注入12％硫酸钡或2％离子型水溶性碘造影剂300ml。常规使用静脉团注造影剂,于扫描前团注60％碘剂50ml(1.5～2.5ml/秒),然后给以0.8ml/秒维持量,总剂量40～50g。取仰卧位扫描,从肝脏膈面开始 Ileus is a common general surgery acute abdomen, its cause many. Relying solely on plain film, peritoneal dialysis and clinical manifestations, signs to make a diagnosis of etiology have some difficulties. Our hospital from April 1996 to December 1998 by CT on 53 cases of acute intestinal obstruction in patients with etiological diagnosis, and achieved good results. 1 Clinical data 1.1 General Information: The group of 53 patients, 39 males and 24 females, aged 1 to 78 years, the median age of 47 years. To varying degrees of abdominal pain, abdominal distension, nausea, vomiting, stop the exhaust bowel complaints, admitted within 6 to 29 hours of onset. All patients have been diagnosed as intestinal obstruction. 1.2 Methods: Before CT scan, oral or gastric tube by injection of 12% barium sulfate or 2% ionic water-soluble iodine contrast agent 300ml. Conventional intravenous bolus injection of contrast agent, 60% iodine dose 50ml (1.5 ~ 2.5ml / sec) before scanning, and then to 0.8ml / sec maintenance dose, the total dose of 40 ~ 50g. Take a supine scan, starting from the diaphragm of the liver