双源CT双能量成像在颈部动脉成像中的应用  

The application of dual-energy CTA in darotid arterial

作　　者：卢道延[1] 冯宇[1] 葛高华[1] 徐益民[1] 王德杭[2] 

机构地区：[1]淮安市第一人民医院CT室,江苏淮安223300 [2]南京医科大学第一附属医院放射科,江苏南京210029

出　　处：《南京医科大学学报（自然科学版）》2011年第10期1497-1500,共4页Journal of Nanjing Medical University(Natural Sciences)

摘　　要：目的:探讨双源CT双能量成像在头颈部血管成像中的应用价值。方法:回顾性分析141例行颈部双能量血管成像病例资料,评价颈部血管双能量成像的图像质量,并用多种后处理方法对血管病变进行综合分析。结果:141例患者均清晰显示颈部动脉全貌,28例颈部血管未见异常,9例血管有发育变异,104例发现异常血管病变。99例有粥样硬化斑块的患者中,发现140段血管不同程度的狭窄,6例合并颅内动脉瘤。5例无粥样硬化斑块的患者中发现3例颅内动脉瘤,2例颅内动静脉畸形。结论:作为一种无创、经济、简便的检查方法,双源CT双能量成像能快速有效去除颈部及颅底骨骼,多方位显示颈部动脉狭窄程度、管壁粥样硬化斑块的特点以及动脉瘤的大小、形态,在颈部血管病变的筛查、诊断及治疗后随访中有重要的作用。Objective： To investigate the application value of dual-source computed tomography dual-energy angiography in carotid arterial.Methods： We retrospectively analyzed the images of 141 patients detected by dual-energy angiography,evaluated the quality of the images and used various reconstruction methods to analyze the pathological changes in carotid arterial.Results：High quality images were acquired in all of the 141 cases apart from 28 cases with no abnormalities and 9 cases showed normal variants of blood vessels,abnormalities of blood vessels were detected in 104 patients.140 vessels with stenosis were detected in 99 patients with atherosclerotic plaque,including 6 patients with aneurysms,3 aneurysms and 2 arteriovenous malformation were detected in 5 patients without atherosclerotic plaque.Conclusion： As a non-invasive,cheap and convenient method,DE-CTA can remove bone in the neck and skull base,visualize stenosis,atherosclerotic plaque and aneurysms of carotidartery.DE-CTA possesses important effect to screen,diagnose,and track neck vascular diseases.

关 键 词：双源CT 双能量成像 颈动脉 血管造影术 

分 类 号：R814.42[医药卫生—影像医学与核医学]