股动脉粥样硬化的彩色多普勒超声研究

目的：应用彩色多普勒超声研究不同程度的股动脉粥样硬化的超声表现。方法：测量股动脉血管后壁内膜中层复合体厚度（IMT）、收缩期峰值速度、加速度时间和频谱形态，来估测股动脉粥样硬化损伤的程度。结果：当内膜中层复合体厚度＞1mm，收缩期峰值速度＜0．55mm/s、股动脉三峡形态消失（单峰或双峰），即表明股动脉受损或远端动脉受损。受损的程度可以通过上述三个指标改变来评估。结论：通过超声测值及频谱形态变化，可以准确的估测股动脉及远端动脉的损伤程度。

Atherosclerotic Disease of the Femoral Artery:Sonography and Waveform Study

Objective Doppler arterial, peak velocity and intimal media thickness(IMT)from the abnormal femoral artery were utilized to assess the degree of stenosis. Methods IMT in the superficial femoral artery (SFA), peak velocity in systole, acceleratiln time and velocity waveform were recorded as assess the atherosclerosis of the SFA. Results The SFA or distal segment artery were affected by atherosclerosis stenosis or obstruction disease when IMT is more than 1mm, peak velocity in systole became less than 0.55m/s and normal multiphasic waveform in SFA was dismissed. The severity of the stenosis or the obstructive lesions was further evaluated by measurement of the three procedures. Conclusion The severity of the stenosis or the obstructive lesions in SFA or distal segment is evaluated by sonographical measurement and the elimination of normal multiphasic waveform.