| 赵德霞,丁连芹,孙宇,刘敏.左心室纵向收缩应变与组织多普勒成像在心脏再同步化治疗中的应用[J].中国医学影像技术,2013,29(3):390~393 |
| 左心室纵向收缩应变与组织多普勒成像在心脏再同步化治疗中的应用 |
| Application of longitudinal systolic strain and tissue Doppler imaging in cardiac resynchronisation therapy |
| 投稿时间：2012-10-15 修订日期：2012-12-10 |
| DOI： |
| 中文关键词: 心脏再同步化治疗 心力衰竭 超声心动描记术,多普勒 心室功能,左 应变 |
| 英文关键词:Cardiac resynchronization therapy Heart failure Echocardiography, Doppler Ventricular function, left Strain |
| 基金项目: |
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| 中文摘要: |
| 目的: 比较左心室纵向收缩应变(LS)及TDI两种方法在评价左心室机械收缩不同步性及预测心脏再同步化治疗(CRT)应答中的价值。方法: 选择66例CRT应答者及17例CRT无应答者,分别应用LS和TDI评价左心室收缩的不同步性。在起搏器植入前后,记录LS测量的机械延迟间期(MD)及TDI测量的电机械延迟间期(EMD)。结果: 植入起搏器前,LS测量所有CRT应答者的MD均>60 ms,TDI测量75.76% CRT应答者的EMD>60 ms,无应答者两种方法测量的延迟时间均≤60 ms。植入起搏器后,LS测量所有CRT应答者的MD均降低,TDI测量29.41% CRT应答者的EMD未下降,LS测量无应答者的MD增高,TDI测量无应答者的EMD却无变化。结论: LS延迟间期>60 ms可以精确预测CRT应答。对于预测CRT应答,LS明显优于TDI。 |
| 英文摘要: |
| Objective: To compare the value of longitudinal systolic strain (LS) and tissue Doppler imaging (TDI) for the assessment of mechanical dyssynchrony and prediction of cardiac resynchronisation therapy (CRT) responders. Methods: Sixty-six clinical responders and 17 nonresponders to CRT were evaluated by LS and TDI. Mechanical delay (MD) and electromechanical EMD delay (EMD) intervals were acquired before and after pacemaker implantation. Results: Before implantation, MD measured by LS was >60 ms in all responders, while EMD measured by TDI was >60 ms in 75.76% of responders. Nonresponders had time delay ≤60 ms measured by both techniques. After implantation, LS showed shortened delay values in all responders. However, EMD measured by TDI did not diminish in 29.41% of the positive clinical responders. Nonresponders had worsen delay measured with LS, but not with TDI. Conclusion: Responders to CRT can be excellently predicted when MD measured by LS delay is >60 ms before implantation. LS delay appears to be superior to TDI to predict the response to CRT. |
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