Key result
A proposed physiologic model suggests that pulsatile transmural pressure of arteries modulates capillary density and blood volume in the dermis, explaining the green light PPG waveform.
Comparison
Reflection-mode photoplethysmography at green… vs Commonly accepted model of PPG-signal formation
Design
Other
Authors
Loading...
Challenges conventional PPG models in monitoring; leaves open validation of artery-driven capillary compression before clinical adoption.
The study proposes a new physiologic model to explain the origin of the photoplethysmographic waveform at green light based on capillary density modulation by arterial transmural pressure.
Kamshilin et al. (2017) studied this question. Reflection-mode photoplethysmography (PPG) was evaluated. A proposed physiologic model suggests that pulsatile transmural pressure of arteries modulates capillary density and blood volume in the dermis, explaining the green light PPG waveform.
Synapse has enriched 5 closely related papers on similar clinical questions. Consider them for comparative context: