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目的:探讨螺旋CT对小肠扭转的诊断价值。方法:对8例经手术证实小肠扭转患者的病例资料进行回顾性分析。1例患者行CT平扫,7例行CT平扫和双期增强扫描,并进行图像后处理,包括容积再现(VR)、多平面重组(MPR)和最大密度投影(MIP)。结果:8例中7例有肠管和血管的漩涡征,5例有鸟喙征,2例见同心圆征,4例显示肠管壁强化减弱、肠壁水肿和腹水。结论:肠管和血管的漩涡征是诊断小肠扭转的特征性征象,同心圆征、肠管强化减弱、肠壁水肿和腹水的出现,则高度提示绞窄性肠梗阻;螺旋CT增强扫描和图像重组可对小肠扭转做出准确的定位和定性诊断。
Objective: To investigate the value of spiral CT in the diagnosis of small intestine. Methods: Eight cases of surgically confirmed cases of small intestine torsion were retrospectively analyzed. One patient underwent CT scan, seven patients underwent CT scan and two-phase enhanced scan, and image post-processing including VR, MPR and MIP. Results: In 8 cases, there were swollen signs of intestine and blood vessels in 5 cases, beak sign in 5 cases, concentric circles in 2 cases, weakening of intestinal wall, intestinal wall edema and ascites in 4 cases. Conclusion: The vortex sign of intestine and blood vessel is the characteristic sign of diagnosis of small intestine torsion. The concentric sign, the weakening of intestine and the appearance of intestinal wall edema and ascites are highly suggestive of strangulating intestinal obstruction. Enhanced spiral CT and image reconstruction On the small intestine to make accurate positioning and qualitative diagnosis.