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中华医学超声杂志(电子版) ›› 2015, Vol. 12 ›› Issue (10) : 786 -791. doi: 10.3877/cma.j.issn.1672-6448.2015.10.010

所属专题: 文献

心血管超声影像学

组织运动二尖瓣环位移自动追踪技术定量评估早期心尖肥厚型心肌病的收缩功能
宋光1, 张晶1, 任卫东1,(), 刘慧1, 乔伟1   
  1. 1. 110004 中国医科大学附属盛京医院超声科
  • 收稿日期:2015-06-11 出版日期:2015-10-01
  • 通信作者: 任卫东
  • 基金资助:
    辽宁省科技厅科学技术计划项目(2013225049)

Tissue motion tracking of mitral annular displacement in evaluation on left ventricular systolic function in patients with pre-apical hypertrophic cardiomyopathy

Guang Song1, Jing Zhang1, Weidong Ren1,(), Hui Liu1, Wei Qiao1   

  1. 1. Department of Ultrasound, Shengjing Hospital of China Medical University, Shenyang 110004, China
  • Received:2015-06-11 Published:2015-10-01
  • Corresponding author: Weidong Ren
  • About author:
    Corresponding author: Ren Weidong, Email:
引用本文:

宋光, 张晶, 任卫东, 刘慧, 乔伟. 组织运动二尖瓣环位移自动追踪技术定量评估早期心尖肥厚型心肌病的收缩功能[J]. 中华医学超声杂志(电子版), 2015, 12(10): 786-791.

Guang Song, Jing Zhang, Weidong Ren, Hui Liu, Wei Qiao. Tissue motion tracking of mitral annular displacement in evaluation on left ventricular systolic function in patients with pre-apical hypertrophic cardiomyopathy[J]. Chinese Journal of Medical Ultrasound (Electronic Edition), 2015, 12(10): 786-791.

目的

应用组织运动二尖瓣环位移自动追踪(TMAD)技术测定二尖瓣环收缩期位移(MAD),探讨其在评估早期心尖肥厚型心肌病(PAHCM)患者左心室收缩功能中的临床应用价值。

方法

分别选择26例PAHCM患者、高血压左心室肥厚(HLVH)患者和健康自愿者。所有研究对象均经常规超声心动图检查并存储相应切面的二维图像,以双平面Simpson法测量左心室舒张末期容积(EDV)、左心室收缩末期容积(ESV)、每搏量(SV)以及左心室射血分数(LVEF)。应用QLAB 9.1工作站,自动获取二尖瓣环各位点相对于心尖处的收缩期峰值位移(SD),计算3个切面6个位点平均峰值位移。

结果

与正常对照组相比较,PAHCM组在各位点的SD以及6个位点平均峰值位移差异有统计学意义[(10.16±1.17)mm vs (13.09±1.25)mm,(9.03±1.35)mm vs (12.45±1.61)mm,(10.25±1.07)mm vs (12.53±1.29)mm,(10.54±1.01)mm vs (12.39±1.52)mm,(9.25±1.13)mm vs (13.09±1.75)mm,(9.95±0.83)mm vs (12.35±0.94)mm,(9.86±0.39)mm vs (12.65±0.68)mm,t=-8.74、-8.98、-6.92、-5.19、-9.37、-9.74、-18.02,P均<0.05]。与HLVH组比较,PAHCM组在后间壁、后壁、前间壁、前壁的SD以及6个位点平均峰值位移差异有统计学意义[(10.16±1.17)mm vs (8.42±1.28)mm,(10.25±1.07)mm vs (8.36±1.20)mm,(10.54±1.01)mm vs (8.84±1.08)mm,(9.95±0.83)mm vs (8.58±1.09)mm,(9.86±0.39)mm vs (8.50±0.46)mm,t=5.10、6.00、5.87、5.11、11.48,P均<0.05],而在侧壁、下壁的SD差异无统计学差异[(9.03±1.35)mm vs (8.30±1.27)mm,(9.25±1.13)mm vs (8.52±1.21)mm,t=2.25、2.27,P均>0.05]。与正常对照组比较,HLVH组在各位点的SD以及6个位点平均峰值位移差异有统计学意义[(8.42±1.28)mm vs (13.09±1.25)mm,(8.30±1.27)mm vs (12.45±1.61)mm,(8.36±1.20)mm vs (12.53±1.29)mm,(8.84±1.08)mm vs (12.39±1.52)mm,(8.52±1.21)mm vs (13.09±1.75)mm,(8.58±1.09)mm vs (12.35±0.94)mm,(8.50±0.46)mm vs (12.65±0.68)mm,t=-13.27、-10.34、-12.09、-9.71、-10.93、-13.35、-25.59,P均<0.05]。

结论

与LVEF比较,使用TMAD测定PAHCM患者的MAD,进而反映左心室收缩功能的变化,是一种更为简单且敏感的新方法。

Objective

To investigate the value of left ventricular systolic function in patients with pre-apical hypertrophic cardiomyopathy (PAHCM) by tissue motion tracking of mitral annular displacement (TMAD).

Methods

26 cases in each group of PAHCM, hypertensive left ventricular hypertrophy (HLVH) and healthy volunteers were selected respectively. All of the subjects were examined by conventional echocardiography and store two-dimensional image of corresponding section. Using biplane Simpson method to measure left ventricular end-diastolic volume (EDV), left ventricular end-systolic volume (ESV) , stroke volume(SV) and left ventricular ejection fraction (LVEF). Mitral annulus systolic peak displacement (SD) and average peak displacement of six sites in three sections were automatic measured in QLAB 9.1 workstation.

Results

Compared with the control group, the difference was statistically significant at all points of SD and the average peak displacement in PAHCM group [(10.16±1.17) mm vs (13.09±1.25) mm, (9.03±1.35) mm vs (12.45±1.61) mm, (10.25±1.07) mm vs (12.53±1.29) mm, (10.54±1.01) mm vs (12.39±1.52) mm, (9.25±1.13) mm vs (13.09±1.75) mm, (9.95±0.83) mm vs (12.35±0.94) mm, (9.86±0.39) mm vs (12.65±0.68) mm, t=-8.74, -8.98, -6.92, -5.19, -9.37, -9.74, -18.02, P<0.05]. Compared with HLVH group, the difference was statistically significant at SD of inferoseptal, posterior wall, anteroseptal, anterior wall and the average peak displacement in PAHCM group [(10.16±1.17) mm vs (8.42±1.28) mm, (10.25±1.07) mm vs (8.36±1.20) mm, (10.54±1.01) mm vs (8.84±1.08) mm, (9.95±0.83) mm vs (8.58±1.09) mm, (9.86±0.39) mm vs (8.50±0.46) mm, t= 5.10, 6.00, 5.87, 5.11, 11.48, P<0.05], and the difference at SD of lateral and inferior wall was not statistically significant [ (9.03±1.35) mm vs (8.30±1.27) mm, (9.25±1.13) mm vs (8.52±1.21) mm, t=2.25, 2.27, P>0.05]. Compared with the control group, the difference was statistically significant at all points of SD and the average peak displacement in HLVH group [ (8.42±1.28) mm vs (13.09±1.25) mm, (8.30±1.27) mm vs (12.45±1.61) mm, (8.36±1.20) mm vs (12.53±1.29) mm, (8.84±1.08) mm vs (12.39±1.52) mm, (8.52±1.21) mm vs (13.09±1.75) mm, (8.58±1.09) mm vs (12.35±0.94) mm, (8.50±0.46) mm vs (12.65±0.68) mm, t=-13.27, -10.34, -12.09, -9.71, -10.93, -13.35, -25.59, P<0.05].

Conclusion

Compared with LVEF in PAHCM patients, using TMAD to measure mitral annular systolic displacement, which reflect the changes of left ventricular systolic function, is a more simple and sensitive new method.

表1 一般情况及常规超声心动图比较
表2 各位点二尖瓣环峰值位移及平均位移的比较
图1 早期心尖肥厚型心肌病患者二尖瓣环峰值位移的变化
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