TY - GEN
T1 - Effect of fiber arrangement on spatial resolution of near-infrared topographic imaging
AU - Okui, Nobuhiro
AU - Kadoya, Takuma
AU - Yamamoto, Tsuyoshi
AU - Okada, Eiji
N1 - Funding Information:
This work was partly supported by the Japan Society for the Promotion of Science, Grant-in-Aid for Scientific Research No.13558116, and a Grant-in-Aid for the 21st century Center of Excellence for Optical and Electronic Device Technology for Access Network from the Ministry of Education, Culture, Sport, Science and Technology in Japan and the Tateisi Science and Technology Foundation. The authors thank NTT DoCoMo for the allowance of a travel grant.
Publisher Copyright:
© 2003 SPIE-OSA.
PY - 2003
Y1 - 2003
N2 - 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.
AB - 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.
KW - Monte Carlo simulation
KW - Topographic image
KW - brain-function measurement
KW - spatial resolution
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M3 - Conference contribution
AN - SCOPUS:85136155900
T3 - Optics InfoBase Conference Papers
SP - 258
EP - 267
BT - European Conference on Biomedical Optics, ECBO 2003
PB - Optica Publishing Group (formerly OSA)
T2 - European Conference on Biomedical Optics, ECBO 2003
Y2 - 22 June 2003
ER -