摘要
目的分析多层螺旋CT血管成像(MSCTA)在动脉粥样硬化性肾动脉狭窄(ARAS)诊断中的价值。方法选取拟诊ARAS患者58例,行肾动脉MSCTA,图像经MPR、CPR、MIP和VR技术后处理,2名经验丰富的影像医师对资料进行评估;并和肾动脉DSA检查结果进行比较。结果 52支狭窄血管均为主肾动脉,其中双侧主肾动脉12例、单侧主肾动脉28例;起始部位狭窄42支,中部狭窄7支,全程狭窄3支。狭窄程度MSCTA分级:0级73支、Ⅰ级27支、Ⅱ级14支、Ⅲ级8支和Ⅳ级3支,DSA分级:0级81支、Ⅰ级24支、Ⅱ级12支、Ⅲ级6支和Ⅳ级2支,两种检查方法评价肾动脉狭窄程度差异无统计学意义(χ2=1.232,P=0.8729)。MSCTA诊断ARAS敏感性为84.6%、特异性为100%、准确性为93.6%。结论 MSCTA可清晰显示ARAS的病变并作出可靠诊断,其可作为诊断肾动脉病变的首选影像检查方法。
Objective To analyze the diagnostic value of multi-slice spiral CT angiography （MSCTA） in atherosclerotic renal artery stenosis （ARAS）. Methods Fifty-eight patients with ARAS were selected. Renal artery MSCTA was performed. Image was processed by the MPR, CPR, MIP and VR technology. The data and compared with DSA at last were analyzed by two experienced images physician. Results The 52 narrow blood vessels were the main renal artery, of which, 12 cases of bilateral main renal artery and 28 cases of unilateral main renal artery; 42 cases of initiation site stenosis, 7 cases of central stenosis and 3 cases of full narrow. The stenosis grade of MSCTA were 73 of 0 grade, 27 of Ⅰ grade, 14 of Ⅱ grade, 8 of Ⅲ grade and 3 of Ⅳ grade. The stenosis grade of DSA were 81 of 0 grade, 24 of Ⅰ grade, 12 of Ⅱ grade, 6 of Ⅲ grade and 2 of Ⅳ grade. There was no significant difference in stenosis grade between MSCTA and DSA （χ^2=1.232, P = 0.8729）. The sensitivity of MSCTA in diagnosis ARAS was 84.6%, specificity was 100% and accuracy was 93.6%. Conclusion MSCTA can clearly display the ARAS lesions situation. It is one of the most valuable tools in the invasive evaluation of atherosclerotic renal artery stenosis.
出处
《中国当代医药》
2013年第13期108-109,共2页
China Modern Medicine
