| 赵丽琴,贺文,张东亮,郭王.64排螺旋CT 血管成像评价血液透析动静脉内瘘功能不全[J].中国医学影像技术,2009,25(4):601~604 |
| 64排螺旋CT 血管成像评价血液透析动静脉内瘘功能不全 |
| Evaluation for internal fistula functional defect of hemodialysis patients with 64-row spiral computed tomographic angiography |
| 投稿时间：2008-11-08 修订日期：2008-12-15 |
| DOI： |
| 中文关键词: 慢性肾功能不全 血液透析 内瘘功能不全 CT血管成像 |
| 英文关键词:Chronic kidney insufficiency Hemodialysis Internal fistula functional defect CT angiography |
| 基金项目: |
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| 中文摘要: |
| 目的 对维持性血液透析(MHD)患者动静脉内瘘血管的狭窄部位及程度进行影像学评价。 方法 对30例临床出现内瘘功能不全症状的MHD患者,应用64排螺旋CT血管成像技术,观察内瘘血管的狭窄部位、程度、血栓形成及侧支循环情况,并对两种主要的后处理方法进行对比。 结果 30例患者均经CTA确定了狭窄的责任血管。流入动脉狭窄3例,其中轻度1例,中度2例;流出静脉狭窄13例,轻度、中度及重度分别为6例、4例及3例;吻合口狭窄30例33处,轻度、中度及重度分别为3处、19处及11处。出现侧支循环5例。MIP显示5例存在血栓,VR通过调整不同阈值后显示血栓4例。 结论 对于血液透析动静脉内瘘功能不全,64层螺旋CTA可基本无创地显示瘘血管的全貌、狭窄部位及狭窄程度。 |
| 英文摘要: |
| Objective To identify the criminal vessel of internal fistula functional defect, and to evaluate the degree of stenosis. Methods Thirty hemodialysis patients with internal fistula functional defect underwent 64-row spiral computed tomographic angiography. The location, degree of vessel stenosis, thrombopoiesis and collateral circulation of the internal fistula vascular tenosis were evaluated with 3D reconstructional imaging: maximum intensity projection (MIP) and volume rendering (VR). Results The criminal vessels for the functional defect of internal fistula were identified in all the 30 patients. Among them, 3 cases with inflow arterostenosis (1 slight, 2 midrange), 13 cases with outflow phlebostenosis (6 slight, 4 midrange and 3 severe) and 30 cases of stenostomia (total 33 stenosis segments) were observed. Collateral circulation was detected in 5 cases. Thrombus was displayed by MIP in 5 cases and VR in 4 cases. Conclusion The criminal vessel of internal fistula functional defect can be evaluated with 64-row spiral computed tomographic angiography with minimum invasion. |
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