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Phys Med Biol. 2002 Sep 21;47(18):3429-40.

Arranging optical fibres for the spatial resolution improvement of topographical images.

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Advanced Research Laboratory, Hitachi, Ltd, Saitama, Japan.


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.

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