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- Title
Study of short-pulse laser propagation in biological tissue by means of the boundary element method.
- Authors
Ansari, Mohammad; Massudi, Reza; Ansari, Mohammad Ali
- Abstract
Propagation of short pulses of light through biological tissues can be studied by numerically solving the diffusion equation. The boundary integral method was used to convert the differential equation to integral form and the result was solved using the boundary element method. The effects of different optical parameters of the tissue, i.e. scattering, absorption coefficients and anisotropic factor, on temporal evolution of the diffusely reflected pulse were studied. The results were compared with those obtained using the finite difference time domain method and the boundary integral method was found to be more precise and faster than the last method. The method can be used to investigate reflected pulses in the study of cell morphology and tumours in different types of tissue.
- Subjects
TISSUES; BOUNDARY element methods; HEAT equation; DIFFERENTIAL equations; MORPHOLOGY; TUMORS; MEDICAL lasers; PHOTOMETRY equipment; ALGORITHMS; BIOLOGICAL models; COMPARATIVE studies; FINITE element method; MATHEMATICS; RESEARCH methodology; MEDICAL cooperation; PHOTOMETRY; PHOTOTHERAPY; RESEARCH; STATISTICS; SYSTEM analysis; TIME; EVALUATION research
- Publication
Lasers in Medical Science, 2011, Vol 26, Issue 4, p503
- ISSN
0268-8921
- Publication type
journal article
- DOI
10.1007/s10103-010-0872-z