title: An application of perturbation Monte Carlo in optical tomography.
abstract: Haemodynamic changes related to activation of the human visual cortex were studied using optical imaging. The change in oxyhaemoglobin concentration in the visual cortex was estimated using a perturbation Monte Carlo (pMC) method. Comparison to a topographic map obtained using the modified Beer-Lambert law and interpolation is given.
authors.affiliation: Laboratory of Biomedical Engineering, Helsinki Univerisity of Technology, P.O. Box 2200, 02015 HUT, Finland and Helsinki Brain Research Centre Kalle.Kotilahti@hut.fi.
authors.forename: Kalle
authors.initials: K
authors.lastname: Kotilahti
authors.forename: Juha
authors.initials: J
authors.lastname: Heiskala
authors.forename: Ilkka
authors.initials: I
authors.lastname: Nissila