摘要
目的:探讨锁骨下-上肢动脉狭窄及闭塞的CT血管成像(CTA)检查技术及临床价值。方法:36例锁骨下-上肢动脉狭窄及闭塞的患者行MSCTA检查,分析其检查技术、病变征象及CT诊断价值。结果:36例中血栓形成11例、动脉硬化13例、大动脉炎12例。36例均成功完成CTA检查,靶血管显示清楚。曲面重组(CPR)及横轴面图像可同时观察血管腔及管壁,急性血栓6例,在横轴面及CPR图像上密度低于亚急性和慢性血栓(5例)。最大密度投影(MIP)显示侧支血管最佳(23例),13例动脉硬化横轴面及容积再现(VR)图像均显示血管壁钙化。CTA还能显示13例动脉硬化及12例大动脉炎患者其他部位的血管病变。结论:锁骨下-上肢动脉MSCTA可清楚显示动脉狭窄或闭塞的部位及特征,应作为本病的常规检查方法,多种后处理技术的联合使用对诊断也有重要作用。
Objective：To explore the technique and clinical value of multi slice CT angiography （CTA） in the examination of stenosis and occlusion diseases of upper extremity arteries. Methods：CTA was performed in 36 patients with ste nosis and occlusion diseases of upper extremity arteries. The technique,CTA features and the diagnostic value were retro speetively analyzed. Results：Of the 36 patients, eleven cases had thrombosis, thirteen cases had arteriosclerosis, and twelve cases had Takayasu arteritis,CTA was performed successfully and target arteries were revealed clearly. Lumen and wall of arterial lesions were shown best on curved planar reformation （CPR） and axial images in all cases. The attenuation of acute thrombosis of 6 cases were lower than that of subacute and chronic thrombosis in five cases. The collateral vessels were dis played well on maximum intensity projection （MIP） images in 23 patients. Calcifications of arterial wall were assessed on axial plane and volume rendering （VR） images in 13 cases with arteriosclerosfs. For patients with arteriosclerosis （n= 13） or with takayasu arteritis （n=12）, arterial abnormalities in other position could also be revealed on CTA. Conclusion： The location and the characteristic features of stenosis and occlusion diseases of upper extremity arteries could be shown clearly on MSCTA images, which could be used as the modality of choice for these diseases and application of various post-processing techniques in combination plays an important role for the diagnosis.
出处
《放射学实践》
北大核心
2009年第3期300-304,共5页
Radiologic Practice
