Key result
A flexible pulse wave sensory array estimated blood pressure with a mean deviation of 2.84 ± 7.53 mmHg for systolic and 0.88 ± 7.06 mmHg for diastolic BP compared to conventional sphygmomanometers.
Why the study?
Chronic cardiovascular diseases such as hypertension require real-time continuous blood pressure monitoring, making epidermal wearable devices for real-time pulse wave acquisition necessary.
Does a flexible pulse wave sensory array with a deep-learning model accurately estimate blood pressure compared to conventional sphygmomanometers?
Does a flexible pulse wave sensory array with a deep-learning model accurately estimate blood pressure compared to conventional sphygmomanometers?
Effect estimate: Systolic BP: 2.84 ± 7.53 mmHg; Diastolic BP: 0.88 ± 7.06 mmHg
A novel flexible pulse wave sensory array using a deep-learning model demonstrates reasonable accuracy for continuous, non-invasive blood pressure monitoring.
May support wearable BP monitoring development; leaves open validation in larger clinical cohorts.
Chronical cardiovascular decreases such as hypertension requires real-time and continuous monitoring of blood pressures (BPs). Pulse wave that contains critical and ample information on cardiovascular dynamics is a direct vital sign to extract BP and therefore an epidermal wearable device enabling real-time acquisition of pulse waves becomes necessary. In this work, we propose and study a flexible pulse wave sensory array aiming for real-time wearable pulse wave acquisition with robustness. A piezoelectric sensor together with a thin-film transistor-based sensor interface circuit is used to detect multiple pulse waveforms at the location of radial artery, which are input to a convolutional neural network for a deep-learning BP estimation model training. The estimated BPs are assessed by a correlation study with the BPs measured by conventional sphygmomanometers. Our study shows a reasonable accuracy of mean deviation and standard deviation of 2.84 ± 7.53 mmHg for systolic BP and 0.88 ± 7.06 mmHg for diastolic BP.
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Li et al. (2022) studied Blood pressure monitoring. Flexible pulse wave sensory array vs. Conventional sphygmomanometers was evaluated on Mean deviation and standard deviation of estimated blood pressure (Systolic BP: 2.84 ± 7.53 mmHg; Diastolic BP: 0.88 ± 7.06 mmHg). A flexible pulse wave sensory array estimated blood pressure with a mean deviation of 2.84 ± 7.53 mmHg for systolic and 0.88 ± 7.06 mmHg for diastolic BP compared to conventional sphygmomanometers.
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