验证左心室高率回声粒子图像速度与患者的4D流式MRI相比
Yichuang Han1, Daniel J Bowen1, Bernardo Loff Barreto1
1Department of Cardiology, Cardiovascular Institute, Thorax Center, Erasmus MC, Rotterdam, The Netherlands.
Ultrasound in medicine & biology
|October 16, 2024
概括
声粒子图像速度计 (echoPIV) 可靠地测量左心室血流量,与4D流量MRI相提并论. 这种先进的超声波技术为心脏病洞察提供了高时间分辨率.
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
- 医学物理 医学物理
背景情况:
- 准确的心内流量测量对于理解心脏病病理生理学至关重要.
- 当前的方法可能在捕捉动态流动模式方面存在局限性.
- 需要新的技术来提高诊断和预后能力.
研究的目的:
- 为了验证回声粒子图像速度测量 (echoPIV) 在体内左心室内心流成像.
- 为了将echoPIV测量与4D流磁共振成像 (MRI) 进行比较.
主要方法:
- 获得26名患者的高速对比增强超声波图像和4D流MRI.
- 包含具有足够质量的回声图像平面,并与MRI对齐以验证.
- 使用NMAE,等号相似性和布兰德-阿尔特曼分析比较区域速度,动能 (KE) 和粘性能量损失 (EL ̇).
主要成果:
- 在24次采集中观察到echoPIV和MRI之间的空间流动模式和痕迹的良好对应.
- 速度配置文件显示高的共因相似性 (0.92 ± 0.06) 和低的NMAE (14 ± 5) 百分点在中枢横截面.
- KE 和 EL ̇还显示了高的共因相似性 (0.89 ± 0.09 和 0.91 ± 0.06) 与可比的 NMAE 值.
结论:
- EchoPIV提供了可靠的估计左心室流与空间时间速度分布,可比于4D流MRI.
- 由于其较高的时间分辨率,EchoPIV擅长捕捉节拍间的变化.
- 4D流动MRI对患者的BMI和解剖学变异仍然更强大.
关键词:
4D 流动MRI 4D 流动MRI是指四维的流动MRI.扩展性心肌病变性是指扩展性心肌病变性.回声粒子图像速度测量心声回声扫描 (Echocardiography) 是一种心声回声扫描.心脏内流的流动模式更多相关视频
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