Title :
An application of perturbation Monte Carlo in optical tomography
Author :
Heiskala, Juha ; Kotilahti, Kalle ; Nissilä, Ilkka
Author_Institution :
Biomag Lab., Helsinki Univ. Central Hospital
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
Keywords :
Monte Carlo methods; biomedical optical imaging; brain; haemodynamics; interpolation; medical image processing; molecular biophysics; optical tomography; proteins; vision; haemodynamic changes; human visual cortex; interpolation; modified Beer-Lambert law; optical imaging; optical tomography; oxyhaemoglobin concentration; perturbation Monte Carlo method; topographic map; Biomedical optical imaging; Blood flow; Humans; Image reconstruction; Monte Carlo methods; Optical imaging; Optical propagation; Optical scattering; Stimulated emission; Tomography;
Conference_Titel :
Engineering in Medicine and Biology Society, 2005. IEEE-EMBS 2005. 27th Annual International Conference of the
Conference_Location :
Shanghai
Print_ISBN :
0-7803-8741-4
DOI :
10.1109/IEMBS.2005.1616397
