A novel non-invasive, wearable VCSEL-based system for multipoint in − vivo measurements of blood perfusion was introduced. The system operates on the basis of the laser Doppler flowmetry (LDF) method and allows for microcirculation studies. The sensors developed were used to analyse the skin blood flow synchronization in homologous regions of the contralateral limbs, both in the basal state and during various functional tests. A high synchronisation of blood flow rhythms in the contralateral limbs of healthy volunteers was shown in the studies presented.

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Evgeny A. Zherebtsov, Elena V. Zharkikh, Igor Kozlov, Angelina I. Zherebtsova, Yulia I. Loktionova, Nikolay B. Chichkov, Ilya E. Rafailov, Victor V. Sidorov, Sergei G. Sokolovski, Andrey V. Dunaev, and Edik U. Rafailov, "Novel wearable VCSEL-based sensors for multipoint measurements of blood perfusion," Proc. SPIE 10877, Dynamics and Fluctuations in Biomedical Photonics XVI, 1087708 (Presented at SPIE BiOS: February 02, 2019; Published: 1 March 2019); https://doi.org/10.1117/12.2509578.