摘要
目的 探讨彩色多普勒超声和计算机断层扫描造影（CTA）诊断肾动脉狭窄（RAS）的准确性.方法 将200例患者按有/无RAS分为观察（A,100例）组与对照（B,100例）组,再将A组随机分为超声（A1,70例）组与CTA（A2,30例）组,使用彩色多普勒超声检测A组患者肾动脉血流速度和肾动脉内径,并以肾动脉血流速度和肾动脉内径对RAS的诊断绘制ROC曲线.并使用CTA技术显示A2组患者狭窄的肾动脉血管.结果 ROC曲线示：肾动脉血流速度和肾动脉内径与RAS的关系密切,当肾动脉血流速度＜ 170cm/s、肾动脉内径＜5mm时,受试患者存在RAS.另30例（60支血管）同时进行了肾动脉CTA检查,肾动脉CTA显示的狭窄血管数多于肾动脉造影[45支（75.0％）和41支（68.3％）],差异无统计学意义（P=0.067）.结论 彩色多普勒超声诊断RAS的灵敏度和特异性均较高,动脉血流速度和肾动脉内径是监测RAS的有效指标.肾动脉CTA和肾动脉造影具有类似的诊断价值.
Objectives Investigate the diagnostic accuracy of the RAS by Color Doppler ultrasound and CTA.Methods Two hundred patients were divided into observation group （A,100） and control group （B,100）according to whether they had/didnt haveRAS.Then divided group A randomly into Group Color Doppler ultrasound （A1,70） and Group CTA （A2,30）.Using color Doppler ultrasound detect renal artery blood flow velocity and renal artery diameter of group A.And drew ROC curve of RAS diagnosis on the basis of renal artery blood flow velocity and renal artery diameter level.And use the CTA technique shows patients with renal artery stenosis of A2 group.Results ROC curves revealed：Renal artery blood flow velocity and renal artery diameter is closely related with the RAS.When renal artery blood flow velocity ＜ 170cm/s and Renal artery diameter ＜5mm,Study patients suffering from RAS.While 30 patients（60 vessels） had renal artery CTA,Renal artery CTA display the Number of renal artery stenosis greater than angiography [45 Branch （75.0％） vs 41 Branch （68.3 ％）],The difference was not statistically significant（P =0.067）.Conclusions There are have higher sensitivity and specificity Color Doppler ultrasound diagnosis of RAS.Renal artery blood flow velocity and arterial diameter is a valid indicator to monitor RAS.CTA renal artery and renal arteriography have similar diagnostic value.
出处
《国际泌尿系统杂志》
2014年第4期512-514,共3页
International Journal of Urology and Nephrology
