Should PPG sensor contact pressure be taken into account for cuff-less blood pressure measurement?
Contact pressure is a critical variable that must be accounted for in the calibration of cuff-less PPG-based blood pressure measurement devices.
This study suggests that widely pursued PPG-based BP measurement devices including those that detect PTT should maintain the CP or include a CP measurement in the calibration equation for deriving BP.
Chandrasekhar et al. (Fri,) studied this question.
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