| 付建莉,张军,刘丽文,李军,刘兵,朱永胜,张海滨,薛洁.心肌组织速度成像对心脏再同步化治疗术后短期疗效的评价[J].中国医学影像技术,2008,24(1):75~77 |
| 心肌组织速度成像对心脏再同步化治疗术后短期疗效的评价 |
| Assesssment of the short-term effects of cardiac resynchronization therapy by tissue velocity imaging |
| 投稿时间：2007-11-08 修订日期：2007-12-14 |
| DOI： |
| 中文关键词: 超声心动描记术 心肌组织速度成像 心脏再同步化治疗 充血性心力衰竭 |
| 英文关键词:Echocardiography Tissue velocity imaging Cardiac resynchronization therapy Congestive heart failure |
| 基金项目: |
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| 中文摘要: |
| 目的 应用常规超声心动图和心肌组织速度成像技术对心脏同步化治疗(CRT)的短期疗效进行评价。方法 对18例心衰患者于三腔起搏器置入术前和术后1个月,应用Philips IE33分别测量左心室舒张末、收缩末的直径(LVDD、LVDS)、双平面Simpson’s法测量左心室容积和射血分数(LVEF);心肌组织速度成像采集3个标准心尖切面图像,应用Q-lab分析软件测量左室基底部和中部12个节段收缩达峰时间的标准差(Ts-SD-12)及各节段心肌射血期峰值速度(Sm)、左室收缩后收缩(PSS)的峰值速度。结果 心脏同步化治疗后,左室收缩同步性改善,Ts-SD-12减低,从(48.4±17.87) ms下降到(35.16±19.4) ms(P＜0.05),左心室内径、容积缩小,收缩功能也有明显改善(P＜0.05),各节段Sm明显提高(P＜0.01)、PSS的峰值速度减低(P＜0.05)。结论 心肌组织速度成像技术是目前评价心肌再同步化治疗的有效手段。 |
| 英文摘要: |
| Objective To assess the short-term effects of cardiac resynchronization therapy by tissue velocity imaging (TVI) technique and routine echocardiography. Methods Tri-chamber pacemakers were implantated in eighteen congestive heart failure patients. Philips IE33 was used to measure left ventricular end-diastolic and end-systolic dimension, and volume before and one month after cardiac resynchronization therapy (CRT). Biplane Simpson's method was used to measure left ventricular ejection fraction (LVEF). 3-4 cardiac cycles TVI 3 standard apical chamber images were acquired from each patient. Q-lab software was used to measure the standard deviation of the time to regional peak systolic velocity (Ts) of 12 LV segments in ejection phase (Ts-SD-12-ejection), the peak systolic velocity of peak S (Sm), the peak velocity of post-systolic shortening(PSS).Results After cardiac resynchronization therapy, the synchronization of left ventricular was better than before. Ts-SD-12 decreased from 48.4±17.87 to 35.16±19.4 (P＜0.05). The LV dimension and volume decreased, and ejection fraction of left ventricular improved significantly a month after CRT (P＜0.001). And Sm increased (P＜0.05)and PSS decreased (P＜0.05).Conclusion Tissue velocity imaging was ameliorated technique for assessing the outcome of CRT as present. |
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