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目的:探讨64排螺旋CT血管造影在诊断锁骨下动脉盗血综合征中的应用价值。方法:选择临床诊断锁骨下动脉盗血综合征12例患者先行64排螺旋CT检查,然后通过工作站进行后处理,包括曲面重组、最大密度投影及容积再现等,判断锁骨下动脉或无名动脉在椎动脉起始部闭塞或狭窄程度、长度及斑块性质;并与彩色超声多普勒及数字减影血管造影检查结果对照。结果:本组12例病例均行64排螺旋CT血管成像,全部行数字减影血管造影检查,6例行彩色多普勒超声检查。根据多层螺旋CT血管造影显示的狭窄部位、长度、程度,做出锁骨下动脉盗血综合征的诊断敏感性100%,特异性100%,与数字减影血管造影结果一致。结论:64排螺旋CT血管成像是评价无名动脉和锁骨下动脉狭窄或闭塞的有效方法,尤其对判断斑块性质有重要帮助,有助于锁骨下动脉盗血综合征诊断。
Objective: To investigate the value of 64-slice spiral CT angiography in the diagnosis of subclavian steal syndrome. Methods: Twelve patients with clinical diagnosis of subclavian steal syndrome were examined by 64-slice spiral CT and then processed through the workstation, including surface recombination, maximum density projection and volumetric reconstruction to determine whether the subclavian artery or innominate artery in the vertebra Artery occlusion or stenosis, length and plaque quality; and color Doppler ultrasound and digital subtraction angiography test results. Results: All the 12 cases underwent 64-slice spiral CT angiography, all underwent digital subtraction angiography and 6 underwent color Doppler ultrasonography. According to the multi-slice spiral CT angiography shows the stenosis, length, degree, to make the diagnostic sensitivity of subclavian steal syndrome 100%, specificity 100%, and digital subtraction angiography results. Conclusion: 64-slice spiral CT angiography is an effective method to evaluate the stenosis or occlusion of innominate artery and subclavian artery. It is especially helpful in judging the nature of plaque and is helpful for the diagnosis of subclavian steal syndrome.