publication . Other literature type . Article . 2007

A component based noise correction method (CompCor) for BOLD and perfusion based fMRI

Yashar Behzadi; Khaled Restom; Joy Liau; Thomas T Liu;
Open Access English
  • Published: 03 May 2007
Abstract
Abstract A component based method (CompCor) for the reduction of noise in both blood oxygenation level-dependent (BOLD) and perfusion-based functional magnetic resonance imaging (fMRI) data is presented. In the proposed method, significant principal components are derived from noise regions-of-interest (ROI) in which the time series data are unlikely to be modulated by neural activity. These components are then included as nuisance parameters within general linear models for BOLD and perfusion-based fMRI time series data. Two approaches for the determination of the noise ROI are considered. The first method uses high-resolution anatomical data to define a region...
Subjects
Medical Subject Headings: nervous system
free text keywords: Article, Psychology, Functional magnetic resonance imaging, medicine.diagnostic_test, medicine, Linear model, Region of interest, Principal component analysis, Voxel, computer.software_genre, computer, Artificial intelligence, business.industry, business, Standard deviation, Image processing, Magnetic resonance imaging, Computer vision
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publication . Other literature type . Article . 2007

A component based noise correction method (CompCor) for BOLD and perfusion based fMRI

Yashar Behzadi; Khaled Restom; Joy Liau; Thomas T Liu;