DocumentCode
2635372
Title
Dimensionality and degrees of freedom in fMRI data analysis - a comparative study
Author
Rydell, Joakim ; Borga, Magnus ; Lundberg, Peter ; Knutsson, Hans
Author_Institution
Dept. of Biomedical Eng., Linkoping Univ., Sweden
fYear
2004
fDate
15-18 April 2004
Firstpage
988
Abstract
Two- and three-dimensional isotropic and anisotropic spatial filters for adaptive fMRI data analysis are compared in terms of activation detection sensitivity and specificity. Evaluations using both real and artificial data are presented. It is shown that three-dimensional anisotropic filters provide superior activation detection performance.
Keywords
biomedical MRI; brain; medical image processing; spatial filters; activation detection sensitivity; activation detection specificity; adaptive fMRI data analysis; three-dimensional anisotropic spatial filters; three-dimensional isotropic spatial filters; two-dimensional anisotropic spatial filters; two-dimensional isotropic spatial filters; Anisotropic filters; Anisotropic magnetoresistance; Biomedical engineering; Biomedical informatics; Blood; Data analysis; Sensitivity and specificity; Shape; Signal to noise ratio; Spatial filters;
fLanguage
English
Publisher
ieee
Conference_Titel
Biomedical Imaging: Nano to Macro, 2004. IEEE International Symposium on
Print_ISBN
0-7803-8388-5
Type
conf
DOI
10.1109/ISBI.2004.1398706
Filename
1398706
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