摘要
目的：探讨组织同步显像在心脏再同步优化治疗的应用价值。方法：32例行双心室优化起搏治疗的心衰患者，术前，术后1个月、3个月、6个月分别进行组织同步显像及常规超声检查，在心尖四腔心切面、两腔心切面、三腔心切面分析组织同步指数及达峰时间差。常规超声指标包括：左室舒张末内径、收缩末内径、二尖瓣反流面积、左室射血分数、二尖瓣舒张充盈时间、主动脉时间速度积分。结果：与术前相比，术后1个月、3个月、6个月组织同步指数及达峰时间差降低（P<0.05）。左室舒张末内径、收缩末内径、二尖瓣反流面积逐渐减小（P<0.05），左室射血分数、二尖瓣舒张充盈时间、主动脉时间速度积分逐渐增加（P<0.05）。结论：组织同步显像可以快捷地评价机械不同步，为心脏再同步优化治疗提供有力的手段。
Abstract
Objective: To apply tissue synchronization imaging(TSI) to evaluate optimized cardiac resynchronization therapy(CRT). Methods: Thirty-two patients with optimized CRT were included. TSI and conventional echocardiography were performed before implantation, 1m, 3m, 6m after implantation. In apical 4, 2, 3 chamber plane, TSI index and the peak time difference were assessed. Conventional echocardiographic parameters included: LVEDD(left ventricular end-diastolic diameter）, LVESD(left ventricular end-systolic diameter), LVEF(left ventricular ejection fraction), MR area, mitral diastolic filling time(DFT), aortic VTI. Results: Compared with pre-implantation, TSI index and peak time difference were significantly reduced in pro 1m, pro 3m, pro 6m(P<0.05), LVEDD, LVESD, MR decreased progressively(P<0.05), while LVEF, DFT, VTI increased progressively(P<0.05). Conclusions: TSI allows quick evaluation of mechanical dyssynchrony and provides a reliable way to evaluate optimized CRT.
关键词
心脏 /
超声检查
Key words
Heart /
Ultrasonography
费洪文;何亚乐;侯跃双;林纯莹;许 燕;陈泗林.
组织同步显像在心脏再同步优化治疗中的应用[J]. 中国临床医学影像杂志. 2008, 19(5): 322-325
FEI Hong-wen;HE Ya-le;HOU Yue-shuang;LIN Chun-ying;XU Yan;CHEN Si-lin.
Tissue synchronization imaging application in optimized cardiac resynchronization therapy[J]. Journal of China Clinic Medical Imaging. 2008, 19(5): 322-325
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