Non-invasive imaging and characterisation of human foot by multi-probe laser reflectometry and Monte Carlo simulation

2005 ◽  
Vol 43 (3) ◽  
pp. 313-318 ◽  
Author(s):  
S. Nandakumar ◽  
M. Singh
Keyword(s):  
Monte Carlo Simulation ◽  
Monte Carlo ◽  
Probe Laser ◽  
Human Foot ◽  
Non Invasive ◽  
Laser Reflectometry

Monte Carlo simulation of non-invasive glucose measurement based on FMCW LIDAR

2010 ◽  
Author(s):  
Bing Xiong ◽  
Wenxiong Wei ◽  
Nan Liu ◽  
Jian-Jun He
Keyword(s):  
Monte Carlo Simulation ◽  
Monte Carlo ◽  
Glucose Measurement ◽  
Non Invasive

scholarly journals Simulation of Photon Propagation in Tissue Using Matlab

2013 ◽  
Vol 21 (Special-Issue) ◽  
pp. 31-36b ◽  
Author(s):  
Dominika Jurovata ◽  
Julia Kurnatova ◽  
Sebastian Ley ◽  
Daniel Laqua ◽  
Pavel Vazan ◽  
...  
Keyword(s):  
Monte Carlo Simulation ◽  
Monte Carlo ◽  
Oxygen Saturation ◽  
Pulse Oximetry ◽  
Fetal Tissue ◽  
Light Transport ◽  
Photon Propagation ◽  
Non Invasive ◽  
Radiation Distribution ◽  
Propagation Rules

Abstract This paper deals with the light transport, photon trajectory and its radiation in tissue. A model based on Monte Carlo simulation has been implemented in Matlab to get inside into photon interaction with tissue. The project is aimed to non-invasive pulse oximetry measurement of fetal oxygen saturation in the maternal abdomen. One of the fundamental challenges is to ensure a sufficient penetration depth which covers maternal and fetal tissue. This contribution investigates the photon trajectories and analyse the number of photons which stayed in tissue and their radiation distribution. The principle and photon propagation rules, needed for simulation, are presented in this article. Finally the results are compared with literature.

ESTIMATION OF OPTICAL PROPERTIES IN BIOLOGICAL TISSUES USING MONTE CARLO SIMULATION

2007 ◽  
Vol 07 (04) ◽  
pp. 449-462 ◽  
Author(s):  
G. JAGAJOTHI ◽  
S. RAGHAVAN
Keyword(s):  
Monte Carlo Simulation ◽  
Monte Carlo ◽  
Optical Properties ◽  
Anisotropy Parameter ◽  
Skin Surface ◽  
Biological Tissues ◽  
Skin Lesions ◽  
Optical Parameters ◽  
Tissue Equivalent ◽  
Laser Reflectometry

In this paper, the optical properties of skin lesion are determined with the help of laser reflectometry. The result is compared with the phantom and simulation values to obtain an accurate result. Surface backscattering is determined by laser reflectometry. The tissue-equivalent phantom is prepared with the help of white paraffin wax mixed with various color pigments in multiple proportions. A familiar Monte Carlo simulation is used to analyze the optical properties of the tissue. The normalized backscattered intensity (NBI) signals from the tissue surface, measured by the output probes after digitization, are used to reconstruct the reflectance images of tissues in various layers below the skin surface. From NBI profiles measured at various locations of the tissues on the forearm, the corresponding optical parameters, the scattering (μ s ) and absorption (μ a ) coefficients, and the anisotropy parameter g are determined by matching these with profiles simulated by the Monte Carlo procedure. The correlation analysis between the lesion thickness and the diffuse reflectance gives the optical wavelengths which are selected for multispectral images of skin lesions. Comparison of results shows the presence of abnormal level in the tissue.

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