Depth selective diffuse optical computed topography: simulations and phantom experiments

M. Fujii; A. Kawanaka; K. Nakayama

doi:10.1117/12.729462

20 July 2007 Depth selective diffuse optical computed topography: simulations and phantom experiments

M. Fujii, A. Kawanaka, K. Nakayama

Proceedings Volume 6629, Diffuse Optical Imaging of Tissue; 66290C (2007) https://doi.org/10.1117/12.729462
Event: European Conferences on Biomedical Optics, 2007, Munich, Germany

Abstract

Diffuse optical topography has excellent features as a noninvasive method that provides 2D location information of cortical activity. However, it cannot distinguish the activation depth. We propose an image reconstruction algorithm that suppresses undesirable effects of skin circulation. It comprises a filtering algorithm that extracts target signals from observation data contaminated by disturbing signals and a 2D visualizing process. Computer simulations revealed its excellent performance. We developed a depth selective diffuse optical topography system prototype and performed phantom experiments. Our algorithm significantly suppressed the influence of the disturbing body in the shallow plane with minimal degradation of the target signal.

Citation Download Citation

M. Fujii, A. Kawanaka, and K. Nakayama "Depth selective diffuse optical computed topography: simulations and phantom experiments", Proc. SPIE 6629, Diffuse Optical Imaging of Tissue, 66290C (20 July 2007); https://doi.org/10.1117/12.729462

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