Photoplethysmography (PPG) based consumer wearable devices have been widely used for continuous health monitoring. However, PPG is vulnerable to the contact pressure (CP) between sensors and human ski
This shows how the PPGs are analysed to calculate the signal-to-noise ratios of the two photoplethysmography systems. Note that the original raw analogue filtered signal (0.3−30 Hz) is further digital
ObjectiveA method to estimate absolute left ventricular (LV) pressure and its maximum rate of rise (LV dP/dtmax) from epicardial accelerometer data and machine learning is proposed. MethodsFive acute
