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Content Provider | SpringerLink |
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Author | Tanifuji, Tadatoshi Ohtomo, Takashi Ohmori, Daisuke Ishikawa, Takumi |
Copyright Year | 2005 |
Abstract | Time-resolved reflectance of an optical pulse in adult head models including non-scattering cerebrospinal fluid (CSF) has been analyzed by the finite difference time domain (FDTD) analysis formulated by the authors. Averaged light intensity and mean time of flight dependences on the source-detector separations calculated by the FDTD analysis are in good agreement with previous experiments, hybrid finite element method (FEM) and Monte Carlo calculations, which justify the FDTD analysis. Based on the analysis, time-resolved reflectance sensitivities to detect optical property changes in brain have been analyzed. As a result, it has been become clear that the sensitivities to detect absorption changes of brain are enhanced in time-resolved reflectance compared to the sensitivities in averaged light intensity, whereas the sensitivities to detect scattering property changes of brain are almost the same in time-resolved reflectance and in averaged light intensity. © 2005 The Optical Society of Japan |
Starting Page | 42 |
Ending Page | 45 |
Page Count | 4 |
File Format | |
ISSN | 13406000 |
Journal | Optical Review |
Volume Number | 12 |
Issue Number | 1 |
e-ISSN | 13499432 |
Language | English |
Publisher | Springer-Verlag |
Publisher Date | 2005-01-01 |
Publisher Place | Berlin, Heidelberg |
Access Restriction | One Nation One Subscription (ONOS) |
Subject Keyword | brain activities cerebrospinal fluid diffusion equations finite difference time domain (FDTD) analysis near-infrared (NIR) spectroscopy optical absorption optical scattering optical tomography time-resolved reflectance Electromagnetism, Optics and Lasers |
Content Type | Text |
Resource Type | Article |
Subject | Atomic and Molecular Physics, and Optics |
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