摘要目的：肠旋转不良合并中肠扭转是一种特殊的疾病,主要在新生儿期发现,为避免肠坏死,早期诊断很重要。本文通过与上消化道造影对比,探讨超声检查在肠旋转不良合并中肠扭转诊断中的价值。方法对2011年1月至2014年12月我院收治并手术证实的48例肠旋转不良合并中肠扭转患儿的临床资料进行回顾性分析,患儿均行超声及上消化道造影检查,以术后诊断作为金标准,对两种影像学表现进行对比分析。结果48例患儿的手术结果均为肠旋转不良合并中肠扭转,旋转度数90~720°,超声诊断符合率89.58%(43/48),主要表现为典型的“漩涡征”,由肠系膜上静脉与肠道以肠系膜上动脉为轴心螺旋状环绕形成；上消化道造影诊断符合率72.92%(35/48),主要表现为十二指肠远端和邻近空肠呈“螺旋状”位于中腹部。与上消化道造影相比,超声具有更高的诊断价值(89.58%v s.72.92%,P﹤0.05)。结论超声是非侵入性、无放射线和低成本的检查,可动态观察并判断中肠扭转的方向和度数,“漩涡”征被考虑为诊断中肠扭转的特异性征象,在诊断先天性肠旋转不良合并中肠扭转时具有很高价值,能为临床选择治疗方案提供参考依据。

abstractsObjective Malrotation of intestine with midgut volvulus is a special disease in newbo-rns.It is important of early diagnosis to avoid the risk of intestinal infarct and necrosis.We intended to ex-plore the value of early ultrasonographic diagnosis in malrotation of intestine with midgut volvulus,comparing with upper gastrointestinal imaging.Methods Ultrasonographic features and upper gastrointestinal imaging of 48surgically confirmed malrotation of intestine with midgut volvulus between January 2011and December 2014were retrospectively analyzed.Results All patients were comfirmed by operaion.The rotational degree of midgut volvulus were 90to 720°.In 43of 48patients (89.58%)of malrotation of intestine with midgut volvulus were diagnosed by ultrasonography.The typical ultrasonographic features were called “whirlpool sign”,which was the superior mesenteric vein and the mesentery around the superior mesenteric artery.In 35 of 48(72.92%)patients with malrotation were confirmed by the upper gastrointestinal imaging.The typical sign of the upper gastrointestinal imaging was the helical form of the distal duodenum and proximal jejunum located at middle abdomen.Compared with upper gastrointestinal radiographic examination,ultrasonographic examination had more sensitivity in diagnosis of malrotation of intestine with midgut volvulus (P﹤0.05). Conclusion Ultrasonographic examination have more sensitivity in diagnosis.Noninvasiveness,absence of X-rays,and low costs could make ultrasonographic examination a useful screening test in patients with sus-pected malrotation of intestine with midgut volvulus.“Whirlpool sign”could be considered a specific ultra-sonographic sign in diagnosis of midgut volvulus,which could provide reference for the clinical treatment of malrotation of intestine with midgut volvulus.