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双模式流量幻影用于超声波和光学流量测量

Chris M Kallweit¹, Adrian J Y Chee¹, Billy Y S Yiu¹

¹Schlegel Research Institute for Aging, Department of Electrical and Computer Engineering, University of Waterloo, Waterloo, ON, Canada.

Physics in medicine and biology

|January 3, 2025

概括

一种新型的双模流幻影可以同时进行超声波和粒子图像速度测量 (PIV) 测量. 它通过将其性能与黄金标准PIV技术进行比较来验证超声波流量映射工具.

科学领域:

生物医学工程生物医学工程
医疗成像医学成像
流体动力学流体动力学

背景情况:

超声波流幻象对于测试和校准至关重要.
需要使用黄金标准技术的独立验证,例如粒子图像速度计 (PIV).
现有的幻影可能不支持同时进行多模式测量.

研究的目的:

设计和展示一款用于同时进行超声波和PIV测量的新型双模流幻影.
为了验证超声波流量映射工具与PIV的性能.
描述一种新的模仿组织的水凝的光学和声学特性.

主要方法:

开发了一种新型的水凝,使用烯基醇和聚乙烯醇冷凝,以提高光学透明度和超声波兼容性.
制造了一个带有螺旋光线的双模流幻影.
使用PIV和超声波彩色流量成像 (CFI) 在恒定流速下同时进行流量测量.

主要成果:

水凝表现出适合的光学衰减,折射率,声学衰减和声速,用于双模测量.
与PIV相比,对速度场和配置文件的比较显示,CFI高估了流速.
根据角度,PIV和超声波测量之间的百分比差异从6%到14%不等.

结论:

开发的双模式流量幻影可用于同时进行PIV和超声波测量.
这种幻影能够有效验证超声波流量映射工具的性能.
这种新的水凝材料适合创建先进的流体幻影.

关键词:

双式流动幻影是一种双式流动幻影.粒子图像速度测量技术性能验证的验证性能验证的验证超声波色流成像超声波色流成像

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