期刊文献+

负荷条件下二尖瓣环DTI舒张期部分位点波形改变的意义

下载PDF
导出
摘要 目的 探讨负荷超声心动图条件下二尖瓣环多普勒组织成像部分位点舒张期波形改变的临床意义.方法 观察对象68人,负荷超声心动图的药物负荷为多巴酚丁胺,取多普勒组织成像条件.入选标准:根据负荷试验后二尖瓣环处4个多普勒组织成像测量位点波形e/a>或≤1.0改变的点位数在1~3处者.结果 冠状动脉造影证实本组68例患者中39例的冠状动脉有1支以上分支的管腔狭窄≥50%,冠心病的发病率为57.4%.负荷条件下舒张期二尖瓣环处4个取样点多普勒组织成像波形的改变可分为两组:Ⅰ组是试验前部分波形e/a≤1.0的测点,试验后转为>1.0,即部分位点的波形向正常人转变,称之为波形改善组;本组共19例,冠状动脉造影阳性7例、阴性12例,分别占36.84%、63.16%.Ⅱ组是试验前部分波形e/a>1.0的测点,试验后转为≤1.0,即部分位点的波形向异常人转变,称之为波形变差组;本组共49例,冠状动脉造影阳性32例、阴性17例,分别占65.31%、34.69%.结论 试验后部分位点转为e/aann≤1.0组的冠状动脉造影阳性率明显高于试验后部分位点转为e/aann>1.0组(P<0.05),多巴酚丁胺负荷超声心动图使得安静状态下较潜隐局部左室舒张功能的损害改变得以较明确的显示.因此,多巴酚丁胺负荷超声心动图条件下,二尖瓣环部分位点舒张期e/aann的改变,尤其是出现由e/aann>1.0转向e/aann≤1.0时,应提示有冠状动脉病变的可能性较大.
出处 《海军总医院学报》 2007年第2期111-113,共3页 Journal of Naval General Hospital of PLA
  • 相关文献

参考文献7

  • 1Bountioukos M,Schinkel AF,Bax JJ,et al.Pulsed-wave tiisue Doppler quantification of systolic and diastolic function of viable and nonviable myocardium in patients with ischemic cardiomyopathy[J].Am Heart J,2004,148(6):1079-1084.
  • 2Sohn DW,Chai IH,Lee DJ,et al.Assessment ofmitral annulus velocity by Doppler tissue imaging in the evaluation of left ventricular diastolic function[J].J Am Coll Cardiol,1997,30(2):474-480.
  • 3Nagueh SF,Middleton KJ,Kopelen HA,et al.Doppler tissue imaging:a noninvasive technique for evaluation of left ventricular relaxation and estimation of filling pressures[J].J Am Coll Cardiol,1997,30(6):1527-1533.
  • 4Cardim N,Morais H,Fonseca C,et al.Tissue Doppler imaging in different locations of the mitral annulus:all different or all different or all the same[J]? Rev Port Cardiol,2000,19(3):303-311.
  • 5贺声,朱智明,高连如,张宁坤,赵文锐.负荷DTI二尖瓣环舒张期波形改变对心肌缺血的提示意义[J].中国医学影像技术,2005,21(2):194-198. 被引量:2
  • 6Alam M,Wardell J,Andersson E,et al.TissueDoppler imaging in different locations of the mitral annulus:all different or all the same[J].Rev Port Cardiol,2000,19(3):303-311.
  • 7Schuster P,Faerestrand S,Ohm OJ.Color Dopplertissue velocity imaging demonstrates significant asynchronous regional left ventricular contraction and relaxation in patients with bundle branch block and heart failure compared with control subjects[J].Cardiology,2004,102(4):220 -227.

二级参考文献8

  • 1Nagueh SF, Middleton K J, Kopelen HA, et al. Doppler tissue imlaxation and estimation of filling pressures[J]. J Am Coll Cardiol,1997,30(6): 1527-1533.
  • 2Sohn DW, Chai IH, Lee DJ, et al. Assessment of mitral annulus velocity by Doppler tissue imaging in the evaluation of left ventricular diastolic function [J]. J Am Coll Cardiol, 1997, 30 (2): 474-480.
  • 3Jun T, Hirono O, Kubota I, et al. Dobutamine stress echocardiography for the diagnosis of myocardial viability: assessment of left ventricular systolic velocities in longitudinal axis by pulsed Doppler tissue imaging[J]. Jpn Heart J, 2000,41(4) :435-443.
  • 4Ohte N, Narita H, Hashimoto T, et al. Evaluation of left ventricular early diastolic performance by color tissue Doppler imaging of the mitral annulus[J]. Am J Cardiol, 1998,82(11) :1414-1417.
  • 5Bruch C, Schmermund A, Bartel T, et al.Tissue Doppler imaging: a new technique for assessment of pseudonormalization of the mitral inflow pattern[J]. Echocardiography, 2000, 17(6 Pt 1): 539-546.
  • 6Katz WE, Gulati VK, Mahler CM, et al. Quantitative evaluation of the segmental left ventricular response to dobutamine stress by tissue Doppler echocardiography [J]. Am J Cardiol, 1997, 79 (8):1036-1042.
  • 7Alam M, Wardell J, Andersson E, et al. Characteristics of mitral and tricuspid annular velocities determined by pulsed wave Doppler tissue imaging in healthy subjects [J]. J Am Soc Echocardiogr,1999,12(8): 618-628.
  • 8魏丽萍,刘霞,杨锐英,游树荣,郄占军,王琴.多普勒组织显像技术对冠心病患者二尖瓣环运动特点分析[J].中国医学影像技术,2003,19(9):1140-1142. 被引量:3

共引文献1

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