AIM: To explore the accuracy of three dimensional color Doppler ultrasonography in evaluating the extent of carotid artery stenosis.

目的：探讨利用三维彩色多普勒超声成像评价颈动脉狭窄程度的准确性。

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In both groups, the stenosis extent of carotid artery, the site with the plaque, the conditions of the plaque surface and the echo inside it were evaluated.

观察两组受检者颈动脉管腔狭窄程度、斑块存在部位和斑块内回声情况。

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