SeismoWatch: Wearable Cuffless Blood Pressure Monitoring Using Pulse Transit Time
| Autor: | Omer T. Inan, Hyolim Kang, Jordan Conant, Anirudh Joshi, Andrew M. Carek |
|---|---|
| Rok vydání: | 2018 |
| Předmět: |
Heartbeat
Computer Networks and Communications Computer science business.industry 010401 analytical chemistry 0206 medical engineering Wearable computer 02 engineering and technology Repeatability Accelerometer 020601 biomedical engineering 01 natural sciences Article 0104 chemical sciences Human-Computer Interaction Blood pressure Hardware and Architecture Embedded system Cuff Oscillometry Pulse wave business Simulation |
| Zdroj: | Proceedings of the ACM on interactive, mobile, wearable and ubiquitous technologies. 1(3) |
| ISSN: | 2474-9567 |
| Popis: | The current norm for measuring blood pressure (BP) at home is using an automated BP cuff based on oscillometry. Despite providing a viable and familiar method of tracking BP at home, oscillometric devices can be both cumbersome and inaccurate with the inconvenience of the hardware typically limiting measurements to once or twice per day. To address these limitations, a wrist-watch BP monitor was developed to measure BP through a simple maneuver: holding the watch against the sternum to detect micro-vibrations of the chest wall associated with the heartbeat. As a pulse wave propagates from the heart to the wrist, an accelerometer and optical sensor on the watch measure the travel time -- pulse transit time (PTT) -- to estimate BP. In this paper, we conducted a study to test the accuracy and repeatability of our device. After calibration, the diastolic pressure estimations reached a root-mean-square error of 2.9 mmHg. The watch-based system significantly outperformed (p |
| Databáze: | OpenAIRE |
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