摘要
目的探讨老年短暂性脑缺血(TIA)与缺血性脑卒中(IS)颈动脉结构与血流动力学的不同,以达到早期识别并防治缺血性脑血管病的目的。方法选择缺血性脑卒中患者40例(IS组),短暂性脑缺血发作患者48例(TIA组),采用Siemens ACUSON 512型彩色多普勒超声诊断仪检测2组患者颈动脉结构及血流动力学参数。结果TIA组颈动脉内膜中层厚度(IMT)及斑块检出率均明显低于IS组,差异有统计学意义(P<0.05);TIA组颈内动脉(ICA)、椎动脉(VA)中血流速度(PSV)、舒张末期血流速度(EDV)、时间平均血流速度(TAV)均明显高于IS组,搏动指数(PI)、阻力指数(RI)均明显低于IS组,差异有统计学意义(P<0.05)。结论 TIA的出现往往预示着IS的发生,临床中可通过彩色多普勒超声检查颈动脉内膜中层厚度、斑块及血流动力学情况,以实现对缺血性脑血管病的早期诊断和预防。
Objective To investigate the differences in carotid artery structure and hemodynamic parameters between elderly patients with transient ischemic attacks（TIA）and elderly patients with ischemic stroke（IS）,and to early identify and prevent the ischemic cerebrovascular disease.Methods Carotid artery structure and hemodynamic parameters were measured using ultrasound system in 40 patients with IS（IS group）and 48 patients with TIA（TIA group）.Results Compared with IS group,the carotid artery intima-media thickness（IMT）,plaque detection rate,pulsatility index and resistance index in the internal carotid artery（ICA）and vertebral artery（VA）significantly decreased,but the peak systolic velocity,end diastolic velocity and time-averaged velocity obviously increased in TIA group（P〈0.05）.Conclusion The TIA often heralds the occurrence of IS.Doppler ultrasound can be used to measure the IMT,plaques and hemodynamics for the early diagnosis and prevention of ischemic cerebrovascular disease.
出处
《南昌大学学报（医学版）》
CAS
2014年第11期60-62,共3页
Journal of Nanchang University：Medical Sciences
