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评估左心室细分壁运动在高性心肌病与心肌标记的肌肉心脏
S E Maier1, S E Fischer, G C McKinnon
1Institute of Biomedical Engineering and Medical Informatics, University of Zurich, Switzerland.
Circulation
|December 1, 1992
概括
磁共振心肌标记可以非侵入性地评估心脏功能. 患有多变性心肌病的患者表现出旋转和辐射位移的减少,特别是在后部和隔膜区域.
科学领域:
- 心血管成像 - 心血管成像
- 生物医学工程 生物医学工程
- 心脏生理学 心脏生理学
背景情况:
- 评估细分壁运动对于理解心脏功能至关重要.
- 增高性心肌病变 (HCM) 是一种影响心脏肌肉结构和功能的疾病.
- 对于评估心脏力学而言,最好采用非侵入性技术.
研究的目的:
- 为了评估高性心肌病患者的区域左心室壁运动的非侵入性.
- 为了比较HCM患者和健康志愿者之间的心脏运动模式.
- 使用磁共振心肌标记来进行详细的运动分析.
主要方法:
- 在8名HCM患者和6名健康志愿者中使用了磁共振心肌标记.
- 使用矩形网格图案来追踪心肌变形.
- 定量分析评估了心肌层和区域的分数旋转和辐射位移.
主要成果:
- 健康的志愿者表现出""运动,与对立的底部和顶部旋转.
- HCM患者的旋转减少,特别是在后部区域, septal 和下壁的辐射位移减少.
- 观察到运动中的跨壁梯度,内心层显示最高值.
结论:
- 磁共振心肌标记是有效的区域墙壁运动的非侵入性评估.
- 心脏运动是复杂的,涉及底部和顶部的微分旋转.
- HCM的特点是减少旋转和辐射位移的特定模式.
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