腔内凸阵探头检测颈内动脉病变的价值探讨

目的：探讨腔内凸阵探头在颈内动脉（ICA）疾病检测中的应用价值。方法：73例（146支）ICA进行高频线阵探头和腔内凸阵探头对比检查，观察ICA显示长度、彩色血流及血流频谱形态，测量收缩期峰值速度（PSV），其中18例DSA检查ICA狭窄者（单侧），还测量PSVICA/PSVCCA比值，比较两种方法评估狭窄程度的准确率。结果：146支ICA高频线阵探头检测其显示长度为（2.05±0.35）cm，PSV为（89.8±20.9）cm/s；腔内凸阵探头检测显示长度为（4.41±0.32）cm，PSV值为（116.8±35.1）cm/s，两组测值比较差异均具有统计学意义（P<0.05）。41支ICA高频线阵探头检测困难者，腔内凸阵探头均获得满意二维、彩色血流及频谱图。腔内凸阵探头检出31支ICA走行迂曲呈“V”或“S”等形态，而高频线阵探头仅检出19支异常血管形态。在18例DSA检查ICA狭窄为70%~99%者，高频线阵探头评估狭窄程度的准确率为72.2%，而腔内凸阵探头的准确率为94.4%。结论：腔内凸阵探头能显著增大ICA显示长度，对ICA中远段疾病的检测具有较大价值，可作为高频线阵探头检查困难者的有效补充手段。

Value of endoluminal convex array probe in detecting internal carotid arterial disease

Objective:To investigate the value of endoluminal convex array probe in detecting internal carotid arterial(ICA) disease.Methods:146 ICA of 73 cases were examined with endoluminal convex array probe and high-frequency linear probe respectively to collect following data:visible length,color Doppler appearance and peak systolic velocity(PSV).PSVICA/PSVCCA ratio was calculated in 18 cases of unilateral ICA stenosis diagnosed with DSA to compare the accuracy of evaluating stenosis with two different probes.Resu...