Title :
Comparison of tissue optical properties for localized and homogeneous model of light absorption by blood
Author :
Barun, V.V. ; Ivanov, A.P.
Author_Institution :
Inst. of Phys., Belarus Nat. Acad. of Sci., Minsk, Belarus
Abstract :
A simple procedure based on the introduction of characteristic times of involving heat transfer processes and geometrical dimensions of the problem is proposed to analytically study light and heat propagation through multicomponent biological tissues irradiated by an external light pulse. The procedure enables one to explicitly analyze the effects of all optical and thermal parameters of the problem. The proposed model of the parameters is discussed and critically compared with published data. The simulations can be easily generalized to include multilayered tissue structure and blood perfusion rate into consideration. Sample examples are given to illustrate spatial and temporal temperature distributions over tissue depth.
Keywords :
bio-optics; biological tissues; haemorheology; heat transfer; light absorption; spatiotemporal phenomena; temperature distribution; blood perfusion rate; geometrical dimension; heat propagation; heat transfer process; homogeneous model; light absorption; light pulse; multicomponent biological tissue; multilayered tissue structure; optical parameter; spatial temperature distribution; temporal temperature distribution; thermal parameter; tissue depth; tissue optical property; Absorption; Biological system modeling; Biological tissues; Biomedical optical imaging; Blood; Geometrical optics; Heat transfer; Optical propagation; Optical pulses; Temperature distribution;
Conference_Titel :
Lasers and Electro-Optics, 2003. CLEO/Pacific Rim 2003. The 5th Pacific Rim Conference on
Print_ISBN :
0-7803-7766-4
DOI :
10.1109/CLEOPR.2003.1274759
