颈动脉瞬时减速度波强(W_2)与组织多普勒显像评价左室舒张功能  被引量:24

Evaluation on left ventricle diastolic function by W_2 of carotid artery and tissue Doppler imaging

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作  者:银浩强[1] 肖沪生[1] 徐智章[2] 张爱宏[3] 彭欣[1] 徐芳[1] 钱孟超[1] 周靓妹[1] 高东雯[1] 许轶君[1] 王奇[1] 

机构地区:[1]上海中医药大学附属龙华医院超声科,200032 [2]复旦大学超声医学与工程技术研究所 [3]西安交通大学附属二院医用超声研究室

出  处:《上海医学影像》2008年第3期196-199,共4页Shanghai Medical Imaging

摘  要:目的探讨颈动脉W2与组织多普勒显像评价左室舒张功能之间的相关性,以期为临床评价左室舒张功能提供参考。方法测量66例健康志愿者的左右颈总动脉W2、二尖瓣血流舒张早期峰值速度(E)和舒张晚期峰值速度(A)及其比值(E/A)、二尖瓣瓣环舒张早期峰值速度(E’)和舒张晚期峰值速度(A’)及其比值(E’/A’)、等容舒张时间(IVRT),并进行各参数间的相关性分析。结果E’/A’与E/A成正相关(r=0.604,p<0.01=;E/E'与E’/A’呈负相关,(r=-0.252,p<0.05);W2与E’/A’、E/A、E/E’、IVRT均不相关(p>0.05)。结论E’/A’、E/A、E/E’、IVRT能较好地反映左室舒张功能,但对左室松弛功能的评价仍有局限性,应用无创的颈动脉W2评价左室舒张功能值得做更进一步的研究。Objective To explore the correlation of evaluation on left ventricle diastolic function by W2 of carotid artery and tissue Doppler imaging, and hope to provide conferences for the evaluation on left ventricle diastolic function in clinic. Methods 66 cases of healthy volunteers were enrolled and such parameters of them were measured as W2 of carotid artery of both sides, peak early diastolic velocity (E) and late diastolic velocity (A) of mitral flow and their ratio (E/A), peak early diastolic velocity (E') and late diastolic velocity (A') of mitral annulus and their ratio (E'/A'), isovolumic relaxation time (IVRT). The correlation among all these parameters were analyzed. Results There were positive correlation between E'/A' and E/A (r=O.604,p〈O.O1); negative correlation between E/E' and E'/A' (r=-0.252 ,p 〈0.05); no correlation between W2 and E'/A', E/A, E/E', IVRT (p〉0.05). Conclusion Left ventricle diastolic function can be reflected better by E'/A', E/A, E/E' and IVRT but there still exists localization in evaluating left ventricle relaxing function with these parameters. Further research deserves in evaluating left ventricle diastolic function by non-invasive carotid W2.

关 键 词:左室舒张功能 多普勒组织成像 瞬时减速度波强(W2) 相关性 

分 类 号:R544.1[医药卫生—心血管疾病] R540.45[医药卫生—内科学]

 

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