Chinese Journal of Lasers, Volume. 47, Issue 9, 907002(2020)
Experimental Study of Indocyanine Green Pharmacokinetics Based on Adaptive Extended Kalman Filter
The fluorescence pharmacokinetic parameters (permeability, etc.) based on dynamic diffuse fluorescence tomography (DFT) can provide reference for studying the dynamic physiological process and pathological information of different biological tissues. The adaptive extended Kalman filter (AEKF) (a method for dynamic analysis) has many advantages, such as precise modeling and multi-parameter online estimation. In this work, the metabolic process of indocyanine green (ICG) in healthy mice liver and tumor-burdened mice subcutaneous transplanted tumor tissue was measured using the dynamic DFT system. Then, we obtained the time-series fluorescence yield images of ICG by DFT method. On this basis, the time-series permeability images of ICG were reconstructed by the AEKF method based on a two-compartment model. The two experimental results verify that the permeability parameters Kpe and Kep of ICG in the tumor are less than that in the liver. Furthermore, the time-series permeability images of ICG also demonstrate that the AEKF method can effectively obtain the real-time and stable ICG pharmacokinetic parameters of complex organisms.
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Zhang Yanqi, Zhang Limin, Zhao Zhichao, Ma Wenjuan, Gao Feng. Experimental Study of Indocyanine Green Pharmacokinetics Based on Adaptive Extended Kalman Filter[J]. Chinese Journal of Lasers, 2020, 47(9): 907002
Category: biomedical photonics and laser medicine
Received: Mar. 16, 2020
Accepted: --
Published Online: Sep. 16, 2020
The Author Email: Limin Zhang (zhanglm@tju.edu.cn)