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| Content Provider | MDPI |
|---|---|
| Author | Hamdy, Omnia El-Azab, Jala Al-Saeed, Tarek Hassan, Mahmoud Solouma, Nahed |
| Abstract | Optical differentiation is a promising tool in biomedical diagnosis mainly because of its safety. The optical parameters’ values of biological tissues differ according to the histopathology of the tissue and hence could be used for differentiation. The optical fluence rate distribution on tissue boundaries depends on the optical parameters. So, providing image displays of such distributions can provide a visual means of biomedical diagnosis. In this work, an experimental setup was implemented to measure the spatially-resolved steady state diffuse reflectance and transmittance of native and coagulated chicken liver and native and boiled breast chicken skin at 635 and 808 nm wavelengths laser irradiation. With the measured values, the optical parameters of the samples were calculated in vitro using a combination of modified Kubelka-Munk model and Bouguer-Beer-Lambert law. The estimated optical parameters values were substituted in the diffusion equation to simulate the fluence rate at the tissue surface using the finite element method. Results were verified with Monte-Carlo simulation. The results obtained showed that the diffuse reflectance curves and fluence rate distribution images can provide discrimination tools between different tissue types and hence can be used for biomedical diagnosis. |
| File Size | 4371456 |
| File Format | |
| e-ISSN | 19961944 |
| DOI | 10.3390/ma10091104 |
| Journal | Materials |
| Issue Number | 9 |
| Volume Number | 10 |
| Language | English |
| Publisher Date | 2017-09-20 |
| Access Restriction | Open |
| Subject Keyword | optical fluence rate tissue optical parameters Kubelika-Munk model diffuse reflection finite element method diffusion equation |
| Content Type | Text |
| Resource Type | Article |
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