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目的探讨64层螺旋CT血管成像对孤立性肠系膜上动脉夹层的诊断应用。方法根据3例64层螺旋CT发现的孤立性肠系膜上动脉夹层,结合横断图像及重建图像,分析影像特征。结果64层螺旋CT血管成像及后处理技术可清晰显示肠系膜上动脉及分支内弧形充盈缺损影,与主动脉夹层的真假腔类似,并清晰显示内膜片,夹层累计范围,是否有血栓及分支血管受累。结论64层螺旋CT血管成像及后处理技术的能清楚显示孤立性肠系膜上动脉夹层,对及时诊治具有重要意义。
Objective To investigate the diagnostic value of 64-slice spiral CT angiography in the diagnosis of isolated superior mesenteric artery dissection. Methods According to the solitary superior mesenteric artery dissection found in three cases with 64-slice spiral CT, the features of the images were analyzed with the combination of transected images and reconstructed images. Results 64-slice spiral CT angiography and post-processing techniques can clearly show the superior mesenteric artery and branch arc filling defect shadow, and the aortic dissection of the true and false lumen similar and clearly shows the scope of the endometrial, dissection, whether there is thrombosis And branch blood vessels involved. Conclusion 64-slice spiral CT angiography and postprocessing techniques can clearly show the isolated superior mesenteric artery dissection, which is of great significance for timely diagnosis and treatment.