肠系膜上动脉综合征的CT及临床表现

CT and clinical presentation of superior mesenteric artery syndrome

目的探讨肠系膜上动脉综合征的临床及CT影像学表现,以提高对该病的认识。方法对11例已确诊的肠系膜上动脉综合征患者的临床和影像学资料进行回顾性分析。结果患者多为年轻女性,主要表现为早期饭后饱腹感、上腹痛、呕心、呕吐及体重下降,部分患者可出现厌食症。CT影像学特征主要表现为:主动脉和肠系膜上动脉夹角和距离的变小;胃和十二指肠的扩张;左肾静脉的扩张及左侧侧支循环的建立。结论结合临床病史,CT表现可对肠系膜上动脉综合征作出明确诊断。

Objective To evaluate CT and clinical presentation of the superior mesenteric artery syndrome（ SMAS） in order to improve the recognition of the disease. Methods Clinical data and CT findings of 11 patients were retrospectively analyzed who had been diagnosed with superior mesenteric artery syndrome. Results The patients were mostly young women who experienced early post-prandial satiety,abdominal pain,nausea,vomiting and often resulted in weight loss. CT main findings included the narrowed aortomesenteric angle and distance,distension of the stomach and duodenum,and dilatation of the left renal vein with left-sided venous collaterals. Conclusion Combined with the clinical history,CT can make a definite diagnosis of SMAS.