暴露于无线电频率能量期间皮肤温度和血流之间的关系:对设备开发的影响
Georgia E H Robles1, David A Nelson2
1William B. Burnsed Jr. Department of Mechanical, Aerospace, and Biomedical Engineering, University of South Alabama, 150 Student Services Drive, Mobile, AL, 36688, USA. ger1921@jagmail.southalabama.edu.
BMC biomedical engineering
|January 3, 2025
概括
快速电磁流 (REFLO) 技术可以测量血液流速,有助于检测周围动脉疾病 (PAD). 该方法使用无线电频率能量来评估温度变化,提供了一个新的选工具.
科学领域:
- 生物医学工程 生物医学工程
- 医疗器械 医疗器械
- 电磁学 电磁学 电磁学 电磁学
背景情况:
- 研究电磁加热与血液流动 (BF) 之间的关系,以检测周围动脉疾病 (PAD).
- 引入快速电磁流 (REFLO) 技术,利用射频 (RF) 能量和红外传感.
- 通过分析皮肤微循环变化,专注于对PAD的查.
研究的目的:
- 评估REFLO用于测量血液流速的可行性.
- 确定射频频率和皮肤厚度如何影响加热和设备灵敏度.
- 评估REFLO在PAD查中的潜力.
主要方法:
- 利用射频能量来加热皮肤组织,并测量温度反应.
- 采用了一种带有射频发射器,微补丁天线和红外温度传感器的设备.
- 分析了与射频频率和皮肤厚度相关的温度变化.
主要成果:
- 使用REFLO技术测量血液流速的可行性已被证明.
- 发现表面温度的增加更多地取决于能量吸收大小,而不是位置.
- 观察到温度响应对射频频率和皮肤厚度的轻微依赖.
结论:
- REFLO技术可以在10-94 GHz范围内区分血液流速.
- 所有测试的频率都对血液流速具有相似的灵敏度.
- 结果支持开发一种用于无症状PAD检测的临床前原型.
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