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Ming-Zher Poh

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Articles

Passive heart-rate monitoring during smartphone use in everyday life

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By Shun Liao, Jiang Wu, Jonathan Wang, Xin Zhe Liu, Lawrence Cai, Yuzhe Yang, Yun Liu, Daniel McDuff, Hao-Wei Su, Brent Winslow, Anupam Pathak, Mark Malhotra, Shwetak Patel, James Taylor, Ming-Zher Poh, Silviu Borac, Eric S. Teasley, Jameson K. Rogers
| Nature Verified
Abstract Resting heart rate (RHR) is a key biomarker of cardiovascular health and mortality1,2,3, but passively tracking it longitudinally generally requires a wearable device, limiting its availability. Here we present passive heart-rate monitoring (PHRM), a deep-learning system that uses facial video-based photoplethysmography for passive measurements of heart rate (HR) and RHR during everyday smartphone interactions.
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Diagnostic assessment of a deep learning system for detecting atrial fibrillation in pulse waveforms

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By Ming-Zher Poh, Yukkee Cheung Poh, Pak-Hei Chan, Chun-Ka Wong
| heart Verified
Arrhythmias and sudden death Original research article Diagnostic assessment of a deep learning system for detecting atrial fibrillation in pulse waveforms Ming-Zher Poh1, Yukkee Cheung Poh1, Pak-Hei Chan2, Chun-Ka Wong2, Louise Pun3, Wangie Wan-Chiu Leung3, Yu-Fai Wong3, Michelle Man-Ying Wong3, Daniel Wai-Sing Chu3, Chung-Wah Siu2 1 Cardiio, Cambridge, Massachusetts, USA 2 Division of Cardiology, Department of Medicine, University of Hong Kong, Hong Kong 3 Department of Family Medicine and...
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Diagnostic assessment of a deep learning system for detecting atrial fibrillation in pulse waveforms

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By Ming-Zher Poh, Yukkee Cheung Poh, Pak-Hei Chan, Chun-Ka Wong
| heart Verified
Methods We trained a deep convolutional neural network (DCNN) to detect AF in 17 s PPG waveforms using a training data set of 149 048 PPG waveforms constructed from several publicly available PPG databases. The DCNN was validated using an independent test data set of 3039 smartphone-acquired PPG waveforms from adults at high risk of AF at a general outpatient clinic against ECG tracings reviewed by two cardiologists.
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