title: Arranging optical fibres for the spatial resolution improvement of topographical images.
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.
authors.affiliation: Advanced Research Laboratory, Hitachi, Ltd, Saitama, Japan.
authors.forename: Tsuyoshi
authors.initials: T
authors.lastname: Yamamoto
authors.forename: Atsushi
authors.initials: A
authors.lastname: Maki
authors.forename: Takuma
authors.initials: T
authors.lastname: Kadoya
authors.forename: Yukari
authors.initials: Y
authors.lastname: Tanikawa
authors.forename: Yukio
authors.initials: Y
authors.lastname: Yamad
authors.forename: Eiji
authors.initials: E
authors.lastname: Okada
authors.forename: Hideaki
authors.initials: H
authors.lastname: Koizumi
mesh_terms: D001921:Brain / Q000000981:diagnostic imaging*; D006801:Humans; D007091:Image Processing, Computer-Assisted; D019047:Phantoms, Imaging; D011859:Radiography; D012680:Sensitivity and Specificity; D019265:Spectroscopy, Near-Infrared / Q000295:instrumentation / Q000379:methods*