Publication details

Vliv prostorového vyhlazení snímků na výsledky skupinové analýzy ve fMRI

Title in English Effect of Spatial Smooth of Images for fMRI Group Results
Authors

MIKL Michal CHLEBUS Pavel BRÁZDIL Milan DRASTICH Aleš KRUPA Petr

Year of publication 2004
Type Article in Proceedings
Conference MEFA MediFórum 2004
MU Faculty or unit

Faculty of Medicine

Citation
Field Neurology, neurosurgery, neurosciences
Keywords fMRI; spatial smooth; spatial filtering; group analysis
Description The Functional Magnetic Resonance Imaging is an examination method, using for localization of active cortical brain areas related to specific stimuli during MR examination, typically using gradient-echo EPI sequences. One of the possible preprocessing steps is spatial low-pass filtering (spatial smoothing). The aim of this work is to discover the impact of spatial filtering with the Gaussian kernel and various FWHM sizes on group results (mean activations).
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