Exploiting Dual-Wavelength Depolarization of Skin-tissues for Camera-based Perfusion Monitoring

Liyuan Huang1; Fangfan Ye2; Huaijing Shu1; Yukai Huang1; Song Wang2; Qiang Wu2; Hongzhou Lu2; Wenjin Wang1

2024

10.1109/TBME.2024.3453402

IEEE Transactions on Biomedical Engineering   影响因子和分区

1558-2531

Perfusion index (PI), the ratio between variable pulsatile (AC) and non-pulsatile (DC) components in a photoplethysmographic (PPG) signal, is an indirect and non-invasive measure of peripheral perfusion. PI has been widely used in assessing sympathetic block success, and monitoring hemodynamics in anesthesia and intensive care. Based on the principle of dual-wavelength depolarization (DWD) of skin tissues, we propose to investigate its opportunity in quantifying the skin perfusion contactlessly. The proposed method exploits the characteristic changes in chromaticity caused by skin depolarization and chromophore absorption. The experimental results of DWD, obtained with the post occlusive reactive hyperemia test and the local cooling and heating test, were compared to the PI values obtained from the patient monitor and photoplethysmography imaging (PPGI). The comparison demonstrated the feasibility of using DWD for PI measurement. Clinical trials conducted in the anesthesia recovery room and operating theatre further showed that DWD is potentially a new metric for camera-based non-contact skin perfusion monitoring during clinical operations, such as the guidance in anesthetic surgery.

第一

1.Department of Biomedical Engineering, Southern University of Science and Technology, China
2.Department of Anesthesia, The Third People's Hospital of Shenzhen, China

Liyuan Huang,Fangfan Ye,Huaijing Shu,et al. Exploiting Dual-Wavelength Depolarization of Skin-tissues for Camera-based Perfusion Monitoring[J]. IEEE Transactions on Biomedical Engineering,2024,PP(99).

Liyuan Huang.,Fangfan Ye.,Huaijing Shu.,Yukai Huang.,Song Wang.,...&Wenjin Wang.(2024).Exploiting Dual-Wavelength Depolarization of Skin-tissues for Camera-based Perfusion Monitoring.IEEE Transactions on Biomedical Engineering,PP(99).

Liyuan Huang,et al."Exploiting Dual-Wavelength Depolarization of Skin-tissues for Camera-based Perfusion Monitoring".IEEE Transactions on Biomedical Engineering PP.99(2024).