SeismoWatch: Wearable cuffless blood pressure monitoring using pulse transit time

被引：75

作者：

Carek, Andrew ^{[1
]}

Conant, Jordan ^{[1
]}

Joshi, Anirudh ^{[1
]}

Kang, Hyolim ^{[1
]}

Inan, Omer ^{[1
]}

机构：

[1] Georgia Institute of Technology, United States

来源：

Proceedings of the ACM on Interactive, Mobile, Wearable and Ubiquitous Technologies | 2017年 / 1卷 / 03期

关键词：

Watches - Mean square error - Blood - Travel time;

D O I：

10.1145/3130905

中图分类号：

学科分类号：

摘要：

The current norm for measuring blood pressure (BP) at home is using an automated BP cuffbased 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 © 2017 ACM.

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