Analysis of a microcirculatory windkessel model using photoplethysmography with green light: A pilot study

IEICE Electronics Express

article

Akio Tanaka¹ 

[1] Tanaka Research Institute

关键词: photoplethysmography;    near infrared spectroscopy;    green light;    windkessel model;    microcirculation;    arteriovenous anastomosis;   

DOI  :  10.1587/elex.19.20220371

学科分类：电子、光学、磁材料

来源: Denshi Jouhou Tsuushin Gakkai

【 摘 要 】

In this study, a vasomotion quantification method using a photoplethysmography prototype, which performs near-infrared spectroscopy combined with green light, is proposed. This structure suppresses the motion artifact and is held by eyeglasses at the back of the ear; this helps improve the integrity of the measured relative concentration changes of the total hemoglobin and pulse wave amplitude during exercise with and without the presence of wind impacting the face. We established a microcirculatory windkessel model including arteriovenous anastomoses estimated from blood flow changes in the depth direction that were acquired using three wavelengths of light and reproduced the vasomotion on a computer. The values predicted by the model were in good agreement with the measured values. The extracted vasomotion can be used to understand autonomic control by the central nervous system.

【 授权许可】

CC BY