BOLD contrast sensitivity enhancement and artifact reduction with multiecho EPI: Parallel‐acquired inhomogeneity‐desensitized fMRI

A. Poser, Benedikt; J. Versluis, Maarten; M. Hoogduin, Johannes; G. Norris, David

doi:10.1002/mrm.20900

Public

BOLD contrast sensitivity enhancement and artifact reduction with multiecho EPI: Parallel‐acquired inhomogeneity‐desensitized fMRI

Published in Magnetic Resonance in Medicine • May 5, 2006

Authors:

Benedikt A. Poser

Maarten J. Versluis

Johannes M. Hoogduin

Abstract

Functional MRI (fMRI) generally employs gradient-echo echo-planar imaging (GE-EPI) to measure blood oxygen level-dependent (BOLD) signal changes that result from changes in tissue relaxation time T(*) (2) between activation and rest. Since T(*) (2) strongly varies across the brain and BOLD contrast ...

Subject

Echo-planar imaging

Contrast (vision)

Artifact (error)

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