摘要
目的应用彩色多普勒超声(CDUS)及能量图(CDE)技术,检测健康成人脑动脉结构及血流动力学参数,研究年龄改变对其影响。方法122例被检者按年龄分三组,分别观察脑动脉颅外段(颈总动脉CCA、颈内动脉ICA、椎动脉VA)和颅内动脉(大脑前动脉ACA、中动脉MCA、后动脉PCA、椎动脉VA、基底动脉BA),并测量CCA的内中膜厚度(IMT)、所有脑动脉的内径和血流动力学参数。结果(一)脑动脉颅外段:①各年龄组成功显示率均100%。②CCA、ICA、VA内径随年龄增长而增宽其IMT随之增厚(p<0.05)。③各血管血流速度随年龄增长而降低(P<0.05),而搏动指数(PI)、阻力指数(RI)随之增高(p<0.05)。(二)颅内动脉:①成功显示率随年龄增长而下降(p<0.05)。②各血管内径、流速随之变小(p<0.05),而搏动指数(PI)、阻力指数(RI)增高(p<0.05)。结论CDUS和CDE技术能实时检测年龄因素导致的脑血管结构和血流动力学的改变,成为脑血管检查的有效方法。
Objective To detect the structures and the blood flow parameters of cerebral arteries for health adult and study their changes with age. Methods A total of 122 health adults were divided into three groups according to age. The extracranial segment of the cerebral arteries and intracranial arteries were observed. The intima-media thickness （IMT） of CCA, the diameter and blood flow parameters of cerebral arteries were measured by color Doppler ultrasound and color Doppler energy. Results The extracranial segment of the cerebral arteries： ①The success rate of TCCDFI and CDE were 100%. ②the diameters of CCA, ICA and VA widened and the IMT increased with the rise of age （p〈0.05）. ③ The blood flow velocity lowered, but PI and RI increased p〈0.05）. Intracranial arteries： The success rate of TCCDFI and CDE, diameter and blood flow velocity decreased, but PI and RI increased with the rise of age （p〈0.05）. Conclusion The age-related changes in structures and haemodynamics of cerebral arteries can be observed real-timely using TCCDFI and CDE. They will be efficient means for the examination of cerebral arteries.
出处
《上海医学影像》
2005年第3期173-176,共4页
Shanghai Medical Imaging
基金
国家自然科学基金资助 编号 30370401
