两种颈动脉闭塞性病变的彩色多普勒血流显像研究

The sonographic study of two types of common carotid arteries(CCA) obliterans by color Doppler sonography

目的 :探讨彩色多普勒血流显像技术在颈总动脉粥样硬化与颈总动脉炎鉴别诊断中的价值。方法 :应用彩色多普勒声像图对 4 0例颈总动脉粥样硬化及 36例颈总动脉炎患者的二维声像图、彩色血流分布特征及频谱多普勒血流动力学参数进行比较。结果 :颈动脉粥样硬化患者血管内膜呈“小丘样”隆起 ,并伴有彩色血流束的充盈缺损。而颈动脉炎患者病变颈动脉血管以血管壁增厚为主 ,彩色血流束可有管状、喇叭口样狭窄。多普勒血流频谱显示颈动脉硬化患者的Vmax、RI、ACC及TA均显著低于颈动脉炎患者。结论 :彩色多普勒声像图可以作为鉴别两种颈动脉闭塞性病变的有效诊断方法。

Objective:To explore the sonographic features of two types of common carotid obliterans by CDFI.Methods:To measure 2-dimensional and Doppler flow indexes by CDFI in 36 patients with common carotid arteritis and 40 patients with arteriosclerosis of CCA.Results:The morphologic constructions of the vessels and indexes of color Doppler flow in 40 patients with arteriosclerosis of CCA are more different from those in 36 patients with common carotid arteritis.The intimaes in arteriosclerosis of CCA have 'hillock' bulges by ultrasound and CDFI of these patients have negative full waves.The walls of CCA in common carotid arteritis have thickness and CDFI of these patients have 'tube ' and ' trumpet ' vascular stenosis.Indexes of Doppler spectrum Vmax?RI?ACC and TA in patients with arteriosclerosis of CCA are obviously lower than those of patients with common carotid arteritis.Conclusion:For imaging diagnosis of two types of common carotid arteritisis obliterans,color Doppler sonography should be take us a preferred method.