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Arranging optical fibres for the spatial resolution improvement of topographical images
Tsuyoshi Yamamoto1, Atsushi Maki, Takuma Kadoya
1Advanced Research Laboratory, Hitachi, Ltd, Saitama, Japan.
Physics in Medicine and Biology
|October 12, 2002
Abstract:
Optical topography is a method for visualization of conical activity. Ways of improving the spatial resolution of the topographical image with three arrangements of optical fibres are discussed. A distribution of sensitivity is obtained from the phantom experiment, and used to reconstruct topographical images of an activation area of the brain with the fibres in each arrangement. The correlations between the activated area and the corresponding topographical images are obtained, and the effective arrangement of the optical fibres for improved resolution is discussed.