多层螺旋CT血管造影术诊断动脉粥样硬化性肾动脉狭窄的价值  

Evaluation of atherosclerotic renal artery stenosis by multi-slice CT angiography

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作  者:侯朝华[1] 常颖欧[1] 魏健[1] 娄永忠[1] 张宁[1] 

机构地区:[1]天津市大港油田总医院放射科,300280

出  处:《国际放射医学核医学杂志》2011年第5期307-310,共4页International Journal of Radiation Medicine and Nuclear Medicine

摘  要:目的探讨多层螺旋CT血管造影(MSCTA)诊断动脉粥样硬化性肾动脉狭窄(ARAS)的必要性和可靠性。方法选取82例曾做过数字减影血管造影(DSA)的ARAS患者行肾动脉MSCTA,将所获得的图像数据进行多平面重建、最大密度投影法重建、容积重建和表面阴影遮盖法重建,将结果与DSA进行对比分析。结果@MSCTA发现狭窄血管95支,其中85支经DSA证实(10支为假阳性),符合率为89%,假阳性率为6.1%。②密度投影法重建+容积重建显示狭窄血管率达到100%。结论MSCTA是筛选ARAS的可靠方法。Objective To study the reliability and necessity of multi-spiral computed tomography angiography (MSCTA) for non-invasive examination of patients with atherosclerotic renal artery stenosis (ARAS). Method Eighty-two ARAS patients who had taken intraarterial digital subtraction angiography were performed with MSCTA. The obtained image data were analyzed in MPR, MIP, VR and SSD with multi-spiral CT at certain condition and were compared with digital substrction angiography (DSA) images. Results ① MSCTA visualized 95 renal artery stenosis on DSA, 85 of which were detected coordinate (10 were false- positive cases). The concordance rate of DSA and MSCTA was 89%, and the false positive rate was 6.1%. ② The intensity projection reconstruction and volume reconstruction perfectly showed stenosis. Conclusion MSCTA is helpful to accurately display the renal artery variation and lesions, and is also a reliable and accurate screening modality for the evaluation of patients with ARAS.

关 键 词:动脉粥样硬化 肾动脉梗阻 体层摄影术 螺旋计算机 血管造影术 

分 类 号:R816.2[医药卫生—放射医学]

 

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