Title :
Effect of fibre arrangement on spatial resolution of near-infrared topographic imaging
Author :
Okui, Nobuhiro ; Kadoya, Takuma ; Yamamoto, Takayuki ; Okada, Eiji
Author_Institution :
Dept. of Electron. & Electr. Eng., Keio Univ., Yokohama, Japan
Abstract :
Near infrared topographic imaging is an effective instrument to image brain cortex activity. The image is obtained from the changes in light intensity detected with multi-channel source-detector pairs. In this study, separation of two absorbers in topographic image is investigated by Monte Carlo simulation to compare the spatial resolution of the double-density arrangement of source-detector pairs with the conventional single-density arrangement. The double density arrangement improves the spatial resolution and accuracy of the position of the absorbers in the topographic image.
Keywords :
Monte Carlo methods; biomedical optical imaging; brain models; image resolution; infrared imaging; optical fibres; Monte Carlo simulation; absorbers; brain cortex activity imaging; conventional single-density arrangement; double-density arrangement; fibre arrangement; light intensity; multichannel source-detector pairs; near-infrared spectroscopy; near-infrared topographic imaging; spatial resolution; Blood; Brain; Head; Light scattering; Optical fibers; Optical imaging; Optical scattering; Scalp; Skull; Spatial resolution;
Conference_Titel :
Biomedical Engineering, 2003. IEEE EMBS Asian-Pacific Conference on
Print_ISBN :
0-7803-7943-8
DOI :
10.1109/APBME.2003.1302708
