追溯超声波多普勒量化使用单个收购在健康的成年人
Annichen Søyland Daae1, Morten Smedsrud Wigen2, Marlene Iversen Halvorsrød1
1Department of Circulation and Medical Imaging, Norwegian University of Science and Technology, Trondheim, Norway; Department of Cardiology, St. Olav Hospital/Trondheim University Hospital, Trondheim, Norway.
Ultrasound in medicine & biology
|June 10, 2023
概括
这项研究验证了一种新的实验性超声波多普勒工具,用于测量组织和血液流动速度. 该工具提供可靠的,与传统方法可比的结果,使得详细的心脏变形分析.
科学领域:
- 心血管成像 - 心血管成像
- 超声波技术 超声波技术
- 生物医学工程 生物医学工程
背景情况:
- 传统的超声波多普勒方法在时间分辨率和心脏量化空间覆盖方面存在局限性.
- 精确测量组织和流速对于诊断和监测心血管疾病至关重要.
研究的目的:
- 验证一个实验性的超声波多普勒工具,用于同时追溯量化组织和流速.
- 评估使用实验工具获得的测量的可靠性和可比性,与传统方法相比.
主要方法:
- 使用实验性超声波采集,具有高时间分辨率 (超过3500/秒) 和大空间覆盖.
- 在21名健康志愿者中,采用多重平面波辐射和心电图拼接来持续获取数据.
- 从左心室的双平面顶角视图对流量和组织速度进行了回顾性分析.
主要成果:
- 在实验和常规速度测量之间观察到一个小但具有统计意义的差异.
- 证明了从各种心肌区域提取光谱组织多普勒的能力,显示从底部到顶部的速度梯度.
- 实验工具使所有区域的光谱速度可以同时跟踪,从而促进了变形研究.
结论:
- 实验性超声波多普勒工具可用于同时,回顾性光谱和色彩多普勒组织和流动.
- 测量结果虽然有显著差异,但与传统方法可比,偏差很小.
- 实验收购为研究心脏变形提供了先进的能力.
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