高频超声检测幼兔未成熟心肌的心功能

姜克新; 任卫东; 刘杰; 刘晶华; 周鹏

中国临床医学影像杂志 ›› 2009, Vol. 20 ›› Issue (2) : 94-96.

论著

高频超声检测幼兔未成熟心肌的心功能

姜克新1，任卫东2，刘杰3，刘晶华1，周鹏1

作者信息 +

Study of cardiac function on immature myocardium by high-frequency echocardiography in infant rabbit

JIANG Ke-xin1, REN Wei-dong2, LIU Jie3, LIU Jing-hua1, ZHOU Peng1

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文章历史 +

摘要

目的：应用高频超声测定幼兔未成熟心肌的心功能。方法：应用M型超声、脉冲多普勒及组织多普勒检测幼兔的各项心功能指标，即心室的舒张及收缩功能，包括每搏量（SV），左心室射血分数（EF），左心室短轴缩短率（FS），二尖瓣口舒张早期峰值速度（E）及舒张晚期峰值速度（A），二尖瓣瓣环舒张早期速度（Ea）和舒张晚期速度（Aa）及心肌做工指数（IMP）等指标。结果：幼兔的心肌顺应性减低，舒张功能异常，收缩功能正常。结论：高频超声可以评价幼兔的未成熟心肌的心功能。

Abstract

Objective: To study the cardiac function of immature myocardium by high-frequency echocardiography in infant rabbit. Methods: Indices of left ventricular diastolic and systolic function were measured using M-mode and Doppler echocardiographic examinations. Stroke volume(SV), ejection fraction(EF), fraction shortening(FS) were measured and calculated. Mitral valve orifice flow velocity was recorded by Doppler flow imaging, peak early velocity(E) and late filling wave(A) were measured. DTI was applied in the pulsed wave Doppler mode to allow for a spectral display of the mitral annulus velocities, peak E wave of early diastolic(Ea) and peak A wave of late diastolic(Aa) at annulus were measured. Index myocardial performance(IMP) was calculated. Results: Left ventricular diastolic function was abnormal and systolic function was normal in infant rabbit. Conclusion: High-frequency echocardiography may be used to study the cardiac function on immature myocardium in infant rabbit.

导出引用

姜克新;任卫东;刘杰;刘晶华;周鹏. 高频超声检测幼兔未成熟心肌的心功能[J]. 中国临床医学影像杂志. 2009, 20(2): 94-96

JIANG Ke-xin;REN Wei-dong;LIU Jie;LIU Jing-hua;ZHOU Peng. Study of cardiac function on immature myocardium by high-frequency echocardiography in infant rabbit[J]. Journal of China Clinic Medical Imaging. 2009, 20(2): 94-96

中图分类号： Ｒ331.31 Ｒ540.45