Monte Carlo investigation of separation of two absorbers in topographic image

Takuma Kadoya, Eizo Moriwaki, Eiji Okada

研究成果: Conference article査読

抄録

Near infrared topographic imaging is an effective instrument to image brain-cortex activity. The image is reconstructed by changes in light intensity detected with multi-channel source-detector pairs. However, light scattering in tissue prevents us from improving the spatial resolution of the reconstructed image, hence it is important to evaluate the effect of scattering on the spatial resolution of the reconstructed image. In this study, separation of two absorbers in topographic image is investigated by Monte Carlo simulation to evaluate the spatial resolution of topographic imaging. Because of heterogeneity of tissue, especially presence of low scattering CSF layer affects the light propagation in the adult brain. The adult head model consists of three layers including a low scattering medium. In case where the separation of two absorbers is greater than the distance between adjacent measurment points, the two absorbers can be separated in the topographic image.

本文言語English
ページ(範囲)176-183
ページ数8
ジャーナルProceedings of SPIE - The International Society for Optical Engineering
4431
DOI
出版ステータスPublished - 2001
イベントPhoton Migration, Optical Coherence Tomography, and Microscopy - Munich, Germany
継続期間: 2001 6月 182001 6月 21

ASJC Scopus subject areas

  • 電子材料、光学材料、および磁性材料
  • 凝縮系物理学
  • コンピュータ サイエンスの応用
  • 応用数学
  • 電子工学および電気工学

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