2024-01-16 インペリアル・カレッジ・ロンドン(ICL)
◆イヤーカナルにぴったりと収まる「ヒアラブルデバイス」を介して脳機能と生体機能をモニターする可能性を探ってきたこの研究チームは、単一の耳から心臓の健康をモニタリングする手法を実証しました。この手法は、臨床環境から社会全体に連続的な心臓モニタリングをもたらし、健康な人々と患者の両方に対して新しい心臓機能の洞察をもたらす可能性があります。
<関連情報>
- https://www.imperial.ac.uk/news/250654/research-shows-tiny-device-canal-monitor/
- https://royalsocietypublishing.org/doi/10.1098/rsos.221620
Hearables:耳から心臓のリズムを記録する実現可能性 Hearables: feasibility of recording cardiac rhythms from single in-ear locations
Metin Yarici,Wilhelm Von Rosenberg,Ghena Hammour,Harry Davies,Pierluigi Amadori,Nico Ling,Yiannis DemirisandDanilo P. Mandic
Royal Society Journal of Open Science Published:03 January 2024
DOI:https://doi.org/10.1098/rsos.221620
Abstract
The ear is well positioned to accommodate both brain and vital signs monitoring, via so-called hearable devices. Consequently, ear-based electroencephalography has recently garnered great interest. However, despite the considerable potential of hearable based cardiac monitoring, the biophysics and characteristic cardiac rhythm of ear-based electrocardiography (ECG) are not yet well understood. To this end, we map the cardiac potential on the ear through volume conductor modelling and measurements on multiple subjects. In addition, in order to demonstrate real-world feasibility of in-ear ECG, measurements are conducted throughout a long-time simulated driving task. As a means of evaluation, the correspondence between the cardiac rhythms obtained via the ear-based and standard Lead I measurements, with respect to the shape and timing of the cardiac rhythm, is verified through three measures of similarity: the Pearson correlation, and measures of amplitude and timing deviations. A high correspondence between the cardiac rhythms obtained via the ear-based and Lead I measurements is rigorously confirmed through agreement between simulation and measurement, while the real-world feasibility was conclusively demonstrated through efficacious cardiac rhythm monitoring during prolonged driving. This work opens new avenues for seamless, hearable-based cardiac monitoring that extends beyond heart rate detection to offer cardiac rhythm examination in the community.
