应用多普勒超声心动图测定犬左室射血力的实验研究(PDF)
《心脏杂志》[ISSN:1009-7236/CN:61-1268/R]
- 期数:
- 1997年第3期
- 页码:
- 140-142
- 栏目:
- 论著
- 出版日期:
- 1997-05-01
文章信息/Info
- Title:
- Experimental study on left ventricular ejection force by Doppler echocardiography in dogs
- 作者:
- 黄高忠 方 平 吴宗贵 张国元
- 第二军医大学附属长征医院心内科 上海 200003
- Author(s):
- Huang Gaozhong ; Fang Ping ; Wu Zonggui; Zhang Guoyuan
- Department of Cardiology, Changzheng Hospital, Second Military Medical University,Shanghai 200003
- 关键词:
- 心力衰竭 射血力; 左室 超声心动描记术; 多普勒 狗
- 分类号:
- -
- DOI:
- -
- 文献标识码:
- -
- 摘要:
- 对12只家犬利用缩窄主动脉法建立了心力衰竭模型, 然后应用多普勒超声心动图测定主动脉瓣最大前向血流速度(Vmax )、平均加速度(MA) 和加速时间内的速度时间积分(VTI) , 计算左室射血力(LVF) , 并用导管法同步测量左室瞬时压力变化(dp/dt)。结果显示心衰时Vmax , MA , LVF 均明显下降且与dp/dt相关, 其中LVF相关程度最好, 提示LVF是一个更合理的左室收缩功能指标。
- Abstract:
- In order to investigate whether the left ventricular ejection force (LVF) reflects the changes of left ventricular contractile function, peak aortic blood velocity(Vmax)，mean accelerat ion (MA) and velocity-time integral (VTI) were measured by Doppler echocardiography in 12 dogs with heart failure induced by aortic stenosis。LVF was defined as Q×CSA ×VTI×MA.The peak rate of rise of left ventricular pressure (dp/dt) was measured by catheterization1.The results showed that Vmax , MA and LVF were significantly decreased after heart failure and well correlated with dp/dt, in which correlation of LVF with dp/dt was superior to that of Vmax and MA.In conclusion, LVF is a more reasonable Doppler index of left ventricular contractile function.
参考文献/References
［1］Isaaz K, Ethevenot G, Admant P, et al.A new Doppler method of assessing left ventricular ejection force in chronic congestive heart failure.Am J Cardiol, 1989; 64: 81.
［2］ 方 平, 潘 真, 张国元, 等.用多普勒方法研究冠心病左室射血力.中华物理医学杂志,1993; 15: 13.
备注/Memo
- 备注/Memo:
- Received 1996-06-03；revised 1997-02-26
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更新日期/Last Update: 1997-05-01