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Multi-slice CT angiography in the diagnosis of Takayasu's arteritis
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- Author:
- No author available
- Journal Title:
- CHINESE JOURNAL OF RADIOLOGY
- Issue:
- 2
- DOI:
- 10.3760/j.issn:1005-1201.2007.02.017
- Key Word:
- Takayasu动脉炎;体层摄影术,X线计算机;血管造影术
Abstract： 目的 探讨多层螺旋CT(MSCT)血管成像在诊断大动脉炎中的临床应用价值.方法 对临床拟诊大动脉炎的14例患者进行MSCT血管成像,扫描范围自颈2椎体水平至耻骨联合水平,图像后处理方法包括多平面重组、最大密度投影、容积重组、血管内镜及血管分析,充分显示受累血管的部位、范围及程度.结果 14例患者CT表现为不同程度的动脉管壁增厚,管腔狭窄或闭塞,管腔狭窄具有向心性的特点,部分伴狭窄后扩张.按管腔情况包括狭窄-阻塞型8例,混合型6例.重组图像结合轴面图像观察,可以清晰显示受累大血管及其分支血管的狭窄程度或闭塞情况以及侧支血管形成情况.依据Lupi-Herrea分类法包括Ⅰ型5例,Ⅱ型2例,Ⅲ型6例,Ⅳ型1例,CT结果均与其临床表现相符.结论 MSCT血管成像同时显示大动脉炎的管腔情况和管壁改变,后者对于早期诊断及治疗、改善预后具有重要意义,可以作为此病的首选检查方法.
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