期刊文献+

速度向量成像及定量组织速度成像技术评价犬急性心肌缺血状态左心室舒张功能 被引量:10

Evaluation of left ventricular diastolic function in canine acute myocardial ischemia using velocity vector imaging and quantitative tissue velocity imaging
下载PDF
导出
摘要 目的探讨应用速度向量成像技术(VVI)或定量组织速度成像技术(QTVI)评价急性心肌缺血状态犬的左室舒张功能的价值。方法健康杂种犬6只,开胸后游离左冠状动脉回旋支或前降支,使用自制动脉血管缩窄器制备不同程度冠状动脉狭窄。测量不同冠脉血流状况下二尖瓣环心肌舒张速度平均值(Em),同时进行心导管检查,测量左室舒张末压(LVEDP)。结果随着犬心肌缺血程度的加重,左室舒张功能进行性下降,LVEDP则逐步升高(P<0.001),VVI与QTVI测量的Em逐渐降低(P<0.001及P=0.001),二者与LVEDP具有良好的负线性相关,使用VVI测量的Em与LVEDP的相关性r=-0.834,P<0.001,使用QTVI测量的Em与LVEDP的相关性r=-0.680,P<0.001,两相关系数行Z检验Z=2.625,P=0.0087。结论VVI及QTVI技术均是无创性测量左室舒张功能的好方法,VVI作为一种新的超声技术,克服了测量时的角度依赖性,在评价左室舒张功能上明显优于QTVI,为临床上准确评价左室舒张功能提供了一种新的可靠方法。 Objective To assess the value of velocity vector imaging(VVI) and quantitative tissue velocity imaging(QTVI) in assessing left ventricular diastolic function of the dogs with acute myocardial ischemia.Methods Six healthy mongrel dogs were subjected to ligation of the left circumflex artery or left anterior descending artery to induce coronary artery stenosis of varying degrees.The mean peak diastolic velocity(Em) of the ventricular walls around the mitral annulus was recorded with VVI or QTVI in the coronar...
出处 《南方医科大学学报》 CAS CSCD 北大核心 2009年第7期1333-1336,共4页 Journal of Southern Medical University
基金 国家自然科学基金(30870721)
关键词 左室舒张功能 速度向量成像 定量组织速度成像 左室舒张末压 left ventricular diastolic function velocity vector imaging quantitative tissue velocity imaging left ventricular end diastolic pressure
  • 相关文献

参考文献10

  • 1Abhayaratna WP,,Marwick TH,Smith WT,et al.Characteristics of left ventricular diastolic dysfunction in the community:an echocardiographic survey[].Heart.2006
  • 2Maurizio G.Diastolic dysfunction and diastolic heart failure:di-agnostic,prognostic and therapeutic aspects[].Cardiovascular Ultrasound.2005
  • 3European Study Group on Diastolic Heart Failure.How to diagnose diastolic heart failure[].European Heart Journal.1998
  • 4Echeverria H H,Bilsker M S,Myerburg R J,et al.Congestive heart failure: Echocardiographic insights[].The American Journal of Medicine.1983
  • 5Dougherty AH,Naccarelli GV,Gray EL,et al.Congestive heart failure with normal systolic function[].The American Journal of Cardiology.1984
  • 6Nagueh SF,Middleton KJ,Kopelen HA,et al.Doppler tissue imaging: a noninvasive technique for evaluation of left ventricular relaxation and estimation of filling pressures[].Journal of the American College of Cardiology.1997
  • 7Sutherland GR,Bijnens B,McDicken WN,et al.Tissue Doppler echocardiography: historical perspective and technological considerations[].Echocardiography.1999
  • 8Owan,TE,Hodge,DO,Herges,RM,Jacobsen,SJ,Roger,VL,Redfield,MM.Trends in prevalence and outcome of heart failure with preserved ejection fraction[].The New England Journal of Medicine.2006
  • 9Meng,X.,Rosenthal,R.,Rubin,D.B.Comparing Correlated Correlation Coefficients[].Psychological Bulletin.1992
  • 10Pirat B,khoury DS,Hartley CJ,et al.A novel feature-tracking echocardiographic method for the quantitation of regional myocardial function[].Journal of the American College of Cardiology.2008

同被引文献55

引证文献10

二级引证文献12

相关作者

内容加载中请稍等...

相关机构

内容加载中请稍等...

相关主题

内容加载中请稍等...

浏览历史

内容加载中请稍等...
;
使用帮助 返回顶部