Title :
Topographical brain activation studies using diffuse optical imaging in the frequency domain
Author :
Noponen, T.E. ; Nissila, I.T. ; Kotilahti, K.M. ; Heino, J.K. ; Kajava, T.T. ; Katila, T.E.
Author_Institution :
Lab. of Biomed. Eng., Helsinki Univ. of Technol., Espoo, Finland
Abstract :
The design of a four-channel frequency-domain instrument developed for various applications of diffuse optical imaging is presented. We also report an imaging technique applied for topographical brain-activation studies. Preliminary results of these studies using motor and auditory stimuli are given. Activation areas have been successfully located on the cortex.
Keywords :
biomedical optical imaging; brain; frequency-domain analysis; hearing; infrared imaging; neurophysiology; surface topography measurement; activation areas; auditory stimulus; cortex; design; diffuse optical imaging; four-channel frequency-domain instrument; frequency domain; motor stimulus; near-infrared light; surface measurements; topographical brain activation studies; Biomedical optical imaging; Frequency domain analysis; Instruments; Light scattering; Optical imaging; Optical refraction; Optical scattering; Particle scattering; Phase measurement; Surface topography;
Conference_Titel :
Engineering in Medicine and Biology, 2002. 24th Annual Conference and the Annual Fall Meeting of the Biomedical Engineering Society EMBS/BMES Conference, 2002. Proceedings of the Second Joint
Print_ISBN :
0-7803-7612-9
DOI :
10.1109/IEMBS.2002.1106209
