肾动脉造影与彩色多普勒超声在肾动脉狭窄诊断中的应用价值

摘要

目的：对比分析肾动脉造影与彩色多普勒超声在肾动脉狭窄诊断中的应用价值。方法：以肾动脉造影结果为判断标准，对50例肾动脉狭窄的高度疑似患者行彩色多普勒超声检查，评价彩色多普勒超声诊断肾动脉狭窄的准确性。结果：彩色多普勒超声共诊断出狭窄肾动脉77条，而肾动脉造影共检出狭窄肾动脉72条，漏诊率为5.00%，误诊率为13.00%。随着血管闭塞程度的加重，多普勒超声诊断结果与肾动脉造影结果的相符率依次升高，其中重度狭窄组和完全闭塞组的符合率达100%。彩色多普勒超声结果显示，中度狭窄组患者的PSV、EDV及AC均显著高于轻度狭窄组，且重度狭窄组的以上指标均显著高于中度狭窄组，比较差异有统计学意义。结论：彩色多普勒超声在肾动脉狭窄诊断中的准确率较高，可基本达到肾动脉造影诊断的标准，其参数PSV、EDV及AC对判断在患者肾动脉狭窄程度具有重要意义。%Objective:To compare and analyze the application value of renal angiography and color doppler flow imaging in diagnosis of renal artery stenosis. Method:The renal arteriography result was regarded as the criteria,50 patients with high degree of suspected renal artery stenosis were diagnosed with color doppler ultrasound,the accuracy of color doppler ultrasound on patients with renal artery stenosis were evaluated. Result:77 renal artery stenosis were diagnosed with color doppler ultrasound,and 72 renal artery stenosis were diagnosed with renal arteriography. The misdiagnosis rate and misdiagnosis rate of doppler ultrasound were 5.00%and 13.00%. With the severity of vascular occlusion,the consistence of doppler ultrasound diagnosis with renal artery angiography increased in turn. Color doppler ultrasound showed that PSV,EDV and AC of patients with moderate stenosis were significantly higher than those of mild stenosis group,and the above indicators of severe stenosis group were significantly higher than those of moderate stenosis group. Conclusion:The color doppler ultrasound is of high accuracy in the diagnosis of renal artery stenosis,which can basically reach the standard angiography in the diagnosis of renal artery. Parameters such as PSV,EDV and AC is of great importance in determining the degree of renal artery stenosis.