Key result
Continuous cuffless accelerometer-based BP monitoring achieves ~2 mmHg error in preclinical trials.
Why the study?
Cuffless blood pressure monitoring enables noninvasive, practical, and continuous cardiovascular disease management.
Does an accelerometer-based cuffless blood pressure monitoring device accurately estimate systolic and diastolic blood pressure in patients?
Does an accelerometer-based cuffless blood pressure monitoring device accurately estimate systolic and diastolic blood pressure in patients?
Effect estimate: < ±2 mmHg
A novel accelerometer-based cuffless blood pressure monitoring device demonstrates high accuracy (< ±2 mmHg error) in preclinical testing, offering a potential tool for continuous noninvasive monitoring.
Preclinical accuracy warrants human validation trials; leaves open whether cuffless accelerometer BP monitoring can achieve clinical standards.
Cuffless blood pressure monitoring enables noninvasive, practical, and continuous cardiovascular disease management. This paper introduces an intelligent inertial blood pressure measurement device based on pulse transit time and ballistocardiography. Time-synchronized data from two accelerometers placed on the common carotid artery are fed to a lightweight on-device neural network for systolic and diastolic estimation. Platform-aware neural architecture search pre-trains the most accurate model that fits within the device from a multi-person dataset. Transfer learning personalizes the model using only 30 seconds of cuff calibration. The model achieves < ±2 mmHg systolic and diastolic error in preclinical trials on 18 patients, consumes <100 kB of memory, and provides 3 readings every second. The device is wireless, non-invasive, personalizable, and cuffless, communicating with patients using a smartphone interface. The framework enables continuous blood pressure monitoring in non-clinical settings by non-experts.
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Saha et al. (2025) studied Cardiovascular disease management (n=18). Intelligent inertial blood pressure measurement device was evaluated on Systolic and diastolic error (< ±2 mmHg). An on-device, continuous, cuffless accelerometer-based blood pressure monitoring system achieved < ±2 mmHg systolic and diastolic error in preclinical trials on 18 patients.
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