2008 5th IEEE International Symposium on Biomedical Imaging: From Nano to Macro 2008
DOI: 10.1109/isbi.2008.4541057
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Invariant 3D spharm features for characterizing fMRI activations in ROIs while minimizing effects of intersubject anatomical variability

Abstract: Spatial patterns of activation statistics within anatomically-defined regions of interest (ROIs) in functional magnetic resonance imaging (fMRI) data were recently shown to be sensitive markers of brain activation changes. Most current methods that analyze fMRI activation statistics largely ignore this. The accuracy and validity of the prevalent approach of spatial normalization of functional data is also being debated. In this paper we present a novel spherical harmonics based rotational, translation and scal… Show more

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