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评估冠状动脉微循环与高率对比增强心声学
Geraldi Wahyulaksana1, Luxi Wei2, Jason Voorneveld2
1Biomedical Engineering, Cardiology, Erasmus MC University Medical Center Rotterdam, Rotterdam, The Netherlands; Department of Radiology, Weill Cornell Medicine, NY, USA.
高率对比增强超声波 (HFR CEUS) 具有更高顺序的单数值分解 (HOSVD) 有效地图像心肌输液. 这项技术可视化冠状动脉流动动力学和急性心肌梗塞的 perfusion 缺陷.
科学领域:
- 心血管成像 - 心血管成像
- 医学超声波 医学超声波
- 生物医学工程 生物医学工程
背景情况:
- 评估心肌输液对于急性心肌梗塞治疗至关重要.
- 心声学在图像质量和分化冠状动脉循环方面面临局限性.
- 之前的工作开发了高率对比增强超声波 (HFR CEUS) 与更高阶单数值分解 (HOSVD) 用于动态 perfusion 可视化.
研究的目的:
- 为了证明HFR CEUS与HOSVD在成像 perfusion 缺陷中的能力.
- 用此技术调查潜在的假阳性对比度检测.
主要方法:
- 使用一种猪模型,对左前垂下冠状动脉进行阻塞/释放.
- 在对比剂注入过程中使用HFR CEUS与HOSVD进行数据捕获和离线处理.
- 在封闭释放之前,封闭期间和封闭后分析了冠心流动力学.
主要成果:
- 成功区分了快速和缓慢的冠状动脉流,代表了微循环区.
- 观察到封闭区域的低 perfusion 和释放时的高血.
- 对比剂破坏测试证实了实际的对比信号与最小的运动,但显示组织信号泄漏与更大的运动.
结论:
- HFR CEUS与HOSVD是评估心肌输液的可行方法.
- 该技术解决了流动动态,使冠状动脉流量缺陷的直接评估成为可能.
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