Effect of fiber arrangement on spatial resolution of near-infrared topographic imaging

Nobuhiro Okui; Takuma Kadoya; Tsuyoshi Yamamoto; Eiji Okada

doi:10.1117/12.500394

15 October 2003 Effect of fiber arrangement on spatial resolution of near-infrared topographic imaging

Nobuhiro Okui, Takuma Kadoya, Tsuyoshi Yamamoto, Eiji Okada

Author Affiliations +

Proceedings Volume 5138, Photon Migration and Diffuse-Light Imaging; (2003) https://doi.org/10.1117/12.500394
Event: European Conferences on Biomedical Optics 2003, 2003, Munich, Germany

Abstract

Near infrared topographic imaging is an effective instrument to image brain-cortex activity. The 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 image. In this study, the light propagation in the adult head model was predicted by Monte Carlo simulation to investigate the effect of fiber arrangement on the spatial resolution of NIR topographic imaging. The image of absorbers in the topographic images obtained from the double-density arrangement of source-detector pairs was compared with that from the conventional single-density arrangement. The double density arrangement improved the spatial resolution and accuracy of the position of the absorbers in the topographic image.

Citation Download Citation

Nobuhiro Okui, Takuma Kadoya, Tsuyoshi Yamamoto, and Eiji Okada "Effect of fiber arrangement on spatial resolution of near-infrared topographic imaging", Proc. SPIE 5138, Photon Migration and Diffuse-Light Imaging, (15 October 2003); https://doi.org/10.1117/12.500394

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