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毫米波辐射用于测量健康人体血液流动

Julia Louise Nelson¹, Connor Cobb¹, Joshua L Keller^2,3

¹William B Burnsed Jr Department of Mechanical, Aerospace, and Biomedical Engineering, University of South Alabama, Mobile, AL, United States of America.

Physiological measurement

|September 10, 2024

概括

一种名为REFLO的新设备使用电磁辐射和动态温度计来检测血液流量低,这是外周动脉疾病 (PAD) 的关键指标. 该研究发现,辐射后皮肤冷却速度有效区分人类小牛的血液流动变化.

科学领域:

心血管诊断心血管诊断
生物医学工程生物医学工程
非侵入性成像成像技术

背景情况:

周围动脉疾病 (PAD) 影响着数以百万计的人,通常是无症状和未被诊断的.
早期发现PAD对于预防心血管事件至关重要.
目前的诊断方法可能是侵入性的或缺乏无症状病例的敏感性.

研究的目的:

评估REFLO (快速电磁流) 装置在非侵入性地识别低血流时的有效性.
评估REFLO作为对周围动脉疾病 (PAD) 的诊断工具的潜力.

主要方法:

利用电磁辐射和动态温度学来测量组织温度变化.
在基线,封闭和封闭后条件下对人类小牛进行了受控流体实验.
采用非线性回归来分析温度数据并推导出血流速常数.

主要成果:

在试点研究中,REFLO成功地区分了不同的血液流动状态 (基线,闭塞,后闭塞).
皮肤加热和冷却速度受到血液流动和个体受试者的显著影响.
皮肤冷却速率在区分血流速率方面比加热速率更为一致.

结论:

毫米波 (MMW) 辐射显示出区分人类血液流速的前景.
辐射后皮肤冷却的速度是评估血液流动的可靠指标.
需要进一步的开发和临床试验来验证REFLO用于准确的PAD诊断.

关键词:

微循环是一种微循环.毫米波辐射辐射是什么?周围动脉疾病是什么热图学热图学热图学热图学血管功能血管功能

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