Why the study?
Does multi-wavelength PPG-based pulse transit time accurately track systolic blood pressure changes compared to traditional ECG-PPG pulse transit time in healthy adults?
Does multi-wavelength PPG-based pulse transit time accurately track systolic blood pressure changes compared to traditional ECG-PPG pulse transit time in healthy adults?
Multi-wavelength PPG measured at a single site (fingertip) shows strong potential for cuffless blood pressure monitoring, outperforming traditional multi-site ECG-PPG methods in tracking systolic blood pressure changes.
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Optimized multi-wavelength PTT improves SBP correlation in animals; leaves open human validation for cuffless BP monitoring.
Liu et al. (2016) studied this question.
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