Doppler Cardiogram: A Remote Detection of Human Heart Activities
Doppler Cardiogram: A Remote Detection of Human Heart Activities
复制标题
多普勒心电图：远程检测人类心脏活动
DOI：
10.1109/tmtt.2019.2948844
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发表时间：
2020-03-01
影响因子：
4.3
通讯作者：
Ran, Lixin
中科院分区：
文献类型：
--
作者：
Dong, Shuqin;Zhang, Yi;Ran, Lixin
大多数用于测量人类心脏活动的医疗仪器，如心电图（ECG），都依赖于接触电极。这会导致不适并限制应用场景。通过ECG测量远程采集μ V级生物电心脏信号在理论上具有挑战性。基于对人体心脏容积变化的磁共振成像分析，我们发现，通过检索由心房和心室运动联合传导到后胸部皮肤引起的多普勒信号，可以使用单个雷达传感器远程检测距离达1 m的多普勒心电图（DCG）。该DCG可以提供ECG中携带的P波、QRS波和T波的所有定时信息。实现的微型遥感器可以是一个理想的便携式仪器的病人，如烧伤患者，扩展应用场景到个人医疗保健，战场救援，和其他。
Most medical instruments invented to measure human heart activities, such as electrocardiograms (ECGs), rely on contact electrodes. This causes discomfort and limits application scenarios. Remote acquisition of mu V-level bioelectrical cardiac signals through ECG measurement is theoretically challenging. Based on the analysis of magnetic resonance imaging to the volume change of human hearts, we found that a single radar sensor can be used to remotely detect a Doppler cardiogram (DCG) at a distance up to 1 m, by retrieving Doppler signals induced by combined atrial and ventricular motions conducted to the skin of the back chest. This DCG can provide all the timing information of the P-wave, QRS-waves, and T-wave carried in ECGs. The implemented miniature remote sensor could be an ideal portable instrument for patients, such as burn victims, extending application scenarios to personal healthcare, battlefield rescue, and others.