scholarly journals Ultrashort Laser Radiation Transfer in heterogeneous biological tissues

2002 ◽  
Author(s):  
Zhixiong Guo
Keyword(s):  
Laser Radiation ◽  
Radiation Transfer ◽  
Biological Tissues ◽  
Ultrashort Laser

Influence of Continuous and Pulsed Laser Radiation on Optical and Thermal Properties of Biological Tissues

2014 ◽  
Vol 59 (12) ◽  
pp. 1149-1154
Author(s):  
A.D. Mamuta ◽  
◽  
V.S. Voitsekhovich ◽  
N.M. Kachalova ◽  
L.F. Golovko ◽  
...  
Keyword(s):  
Thermal Properties ◽  
Laser Radiation ◽  
Pulsed Laser ◽  
Biological Tissues ◽  
Pulsed Laser Radiation

scholarly journals Численное моделирование миграции фотонов в однородных и неоднородных цилиндрических фантомах

2020 ◽  
Vol 128 (6) ◽  
pp. 832
Author(s):  
А.Ю. Потлов ◽  
С.В. Фролов ◽  
С.Г. Проскурин
Keyword(s):  
Radiation Transfer ◽  
Biological Tissues ◽  
Photon Density ◽  
Radiation Transfer Equation ◽  
Scattering Media ◽  
Soft Biological Tissues ◽  
Photon Diffusion ◽  
Low Coherence ◽  
The Brain ◽  
Pulsed Irradiation

The specific features of photon diffusion of low-coherence pulsed irradiation in phantoms of soft biological tissues (blood-saturated tissues of the brain, breast, etc.) are described. The results of photon migration simulation using the Diffusion Approximation to the Radiation Transfer Equation (RTE) are compared with ones of the Monte Carlo simulations. It has been confirmed that the Photon Density Normalized Maximum (PDNM) moves towards the center of the investigated object in case of relatively uniform and strongly scattering media. In the presence of inhomogeneities, type of the PDNM motion changes drastically. Presence of an absorbing inhomogeneity in the medium directs trajectory of the PDNM motion of towards the point symmetric to the inhomogeneity relative to the geometric center of the investigated object. In case of scattering the PDNM moves toward the direction of the center of the scattering inhomogeneity.

scholarly journals Numerical simulation of changes in the electric properties of biological tissues under local heating by laser radiation

2021 ◽  
Vol 2090 (1) ◽  
pp. 012049
Author(s):  
N V Kovalenko ◽  
A V Smirnov ◽  
O A Ryabushkin
Keyword(s):  
Numerical Simulation ◽  
Mathematical Model ◽  
Laser Radiation ◽  
Optical Radiation ◽  
Local Heating ◽  
Biological Tissues ◽  
Electric Properties ◽  
Reliable Tool ◽  
The Mathematical Model

Abstract The mathematical model that describes the local heating of biological tissues by optical radiation is introduced. Changes of the electric properties of biological tissues in such process can be used as a reliable tool for analyzing heating and damage degrees of tissues.

Action Mechanisms of Laser Radiation in Biological Tissues

2003 ◽  
pp. 73-127 ◽  
Author(s):  
A. Roggan ◽  
U. Bindig ◽  
W. Wäsche ◽  
F. Zgoda ◽  
R. Steiner ◽  
...  
Keyword(s):  
Laser Radiation ◽  
Biological Tissues ◽  
Action Mechanisms

Calculation of the temperature effect of laser radiation on biological tissues

2019 ◽  
Author(s):  
V. V. Chernigovskiy ◽  
S. A. Martsinukov ◽  
D. K. Kostrin ◽  
V. A. Simon
Keyword(s):  
Laser Radiation ◽  
Temperature Effect ◽  
Biological Tissues
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