Why the study?
Does adding photoplethysmogram (PPG) intensity ratio (PIR) to pulse transit time (PTT) improve the accuracy of continuous cuffless blood pressure estimation in subjects with and without hypertension?
Does adding photoplethysmogram (PPG) intensity ratio (PIR) to pulse transit time (PTT) improve the accuracy of continuous cuffless blood pressure estimation in subjects with and without hypertension?
Adding photoplethysmogram intensity ratio to pulse transit time improves the accuracy of continuous cuffless blood pressure estimation at rest and over a 24-hour period.
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May support PIR-enhanced PTT for resting cuffless BP estimation; leaves open prospective validation before clinical adoption.
Ding et al. (2017) studied this question.
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