孤立性肠系膜上动脉夹层动脉瘤应用超声诊断的价值

The diagnostic value of ultrasound for dissecting aneurysm of isolated superior mesenteric artery

目的:探讨超声在孤立性肠系膜上动脉夹层动脉瘤中的诊断价值。方法:以血管造影的结果做为确诊的金标准,对医院4例诊断为孤立性肠系膜上动脉夹层动脉瘤的患者行超声检查,并对其检查结果进行对比,回顾性分析超声诊断孤立性肠系膜上动脉夹层动脉瘤的准确性和敏感性。结果:在4例经血管造影确诊为孤立性肠系膜上动脉夹层动脉瘤的患者中,超声准确诊断为3例,3例均清晰的显示夹层部位、范围、真假腔、剥离的内膜回声及相应的血流动力学情况。超声诊断的灵敏度、阳性预测值、假阴性率和准确率分别为80%、100%、20%和80%。结论:当不便进行或无条件进行血管造影时,超声检查对孤立性肠系膜上动脉夹层动脉瘤具有较高的敏感性和准确性,在为诊断孤立性肠系膜上动脉夹层动脉瘤提供了有效而快速的检查手段。

Objective:To investigate the diagnostic value of ultrasound for dissecting aneurysm of isolated superior mesenteric artery.Methods:4patients with dissecting aneurysm of isolated superior mesenteric artery who were diagnosed by angiography,the diagnostic gold standard,were examined by ultrasound,and the results were compared and analyzed.And then the accuracy and sensitivity of ultrasonic diagnosis of dissecting aneurysm of isolated superior mesenteric artery were further researched by using retrospective analysis.Results:In the4patients,3cases were correctly diagnosed as dissecting aneurysm of isolated superior mesenteric artery by ultrasound.And in the3cases,the area of dissection,range,true and false cavity,peeled intima echo and relevantly hemodynamic status were clearly showed in the results of ultrasound.The sensitivity,positive predictive value,false negative rate and accurate rate of ultrasonic diagnosis were80%,100%,20%and80%,respectively.Conclusion:The ultrasound detection has better sensitivity and accuracy in diagnosis of dissecting aneurysm of isolated superior mesenteric artery when angiography is no convenient and unconditional.And it provides effective and rapid detection for diagnosis of dissecting aneurysm of isolated superior mesenteric artery.