Wearables for Joint Effusion Detection: An Analysis for Magnitude-/Phase-Only vs. Combined Readings
Wearables for Joint Effusion Detection: An Analysis for Magnitude-/Phase-Only vs. Combined Readings
复制标题
用于关节积液检测的可穿戴设备：仅幅度/相位读数与组合读数的分析
DOI：
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发表时间：
2021
期刊：
影响因子：
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通讯作者：
A. Kiourti
中科院分区：
文献类型：
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作者：
Connor B. Jenkins;Vigyanshu Mishra;A. Kiourti
检测和诊断关节积液是一项昂贵且经常侵入性的过程。我们之前的工作介绍了一个无缝可穿戴系统，该系统由发送和接收回路组成，能够通过传输系数$oldsymbol{(mathrm{S}_{21})}$测量来检测滑液积聚的变化。该系统依赖于在不同频率下进行的幅度和相位测量。这项工作简化了以前的设计，允许在单一频率下监测幅度和相位。另一个改进是消除了连接到环路上的任何集总元素，以简化可穿戴实现。我们的研究提供了1485.2 MHz的最佳设计，该设计对30 MHz带宽内的频率波动具有鲁棒性。确定了关键性能指标，并比较了纯相位设计与拟议的组合方法。
Detecting and diagnosing joint effusion is a costly and often invasive process. Our previous work introduced a seamless wearable system consisting of transmit and receive loops that was able to detect changes in synovial fluid build-up via transmission coefficient $oldsymbol{(mathrm{S}_{21})}$ measurements. The system relied on magnitude and phase measurements conducted each at different frequencies. This work simplifies the previous design by enabling monitoring of both magnitude and phase at a single frequency. Another improvement is the elimination of any lumped elements attached to the loops to ease the wearable implementation. Our studies provide an optimal design at 1485.2 MHz that is robust to frequency fluctuations within a bandwidth of 30 MHz. Key performance metrics are identified and compared for magnitude-Iphase-only designs vs. the proposed combined approach.