64排螺旋CT动脉成像技术在下肢动脉硬化闭塞症中的应用  

Application of 64-detector CT angiography in arterio sclerosis occlusive disease of lower limbs

作　　者：祝洪福[1] 任千里[1] 王立乾[1] 陈龙[1] 

机构地区：[1]安徽省淮北市人民医院影像科,235000

出　　处：《实用医学影像杂志》2015年第3期234-236,共3页Journal of Practical Medical Imaging

摘　　要：目的探讨64排螺旋CT动脉成像(CTA)技术在诊断下肢动脉硬化闭塞症中的价值。方法回顾分析行64排螺旋下肢动脉血管成像诊断为下肢动脉硬化的患者41例,采用自动触发技术扫描,观察CT增强后二次扫描下肢动脉远段小血管的显示情况,CTA重建采用最大密度投影、容积重建。结果 41例病变血管均能清晰、完整地显示,血管呈广泛不规则狭窄、闭塞,伴有管壁不同程度的钙化及侧支循环血管。第一次扫描15支足背动脉未显影,16支足底动脉未显影,第二次9支足背动脉不显影,8支足底动脉未显影。结论 CT血管造影在诊断下肢动脉硬化闭塞症中具有很高的价值,特别是对小腿血管显示。Objective To investigate the value of 64-detector CT angiography（CTA）on diagnosis of arterio sclerotic occlusive disease of lower limbs. Methods Retrospective analysis 42 patients with arterio sclerotic occlusive disease of lower limbs were performed with 64-detector spiral CT angiography. Automatic trigger technique scanning was used. The distal lower limb arteries of the two kinds enhanced scans were observed for showing the different abil-ities in demonstrating the number of artery. CTA images were reconstructed with the maximum intensity projection（MIP）, volume rendering（VR） and curve planar reformatio（CPR）. Results Forty-two pathological vessels was showed clearly and perfectly. The vessels was generally irregularity angusty and blunting. To accompany vessel wall different degree calcification and compensatory circulation. Twenty arteria dorsalis pedis and 16 arteria plantaris could not be shown on the first scan after enhancement. Thirteen arteria dorsalis pedis and 10 arteria plantaris were not shown on the secondary delayed scans. Conclusion 64-detector spiral CTA is a high value for diagnosising the lower extremity arterial occlusive diseases, especially for the lower limb vessel shown.

关 键 词：体层摄影术 X线计算机 血管造影术 闭塞性动脉硬化 

分 类 号：R543.5[医药卫生—心血管疾病] R816.2[医药卫生—内科学]