FMRI signal source analysis using diffusion-weighted spiral-in acquisition.

Journal Article (Journal Article)

Despite the tremendous growth in functional magnetic resonance imaging (fMRI), susceptibility induced static field inhomogeneity at air/tissue interface have limited the study of ventral brain regions engaged in object recognition and other processes. Furthermore, the spatial extent of fMRI activations in this region may be obscured by contribution of large vessels distant from the precipitating neural events. In this report, a diffusion weighted spiral-in image acquisition was employed to recover fMRI signal in the ventral brain during object recognition with high temporal resolution, as well as to suppress large vessel contributions. The combined methodology of the ventral signal recovery and vascular signal reduction can thus be advantageous for fMRI investigations at the statically inhomogeneous areas.

Full Text

Duke Authors

Cited Authors

  • Song, A; Emberger, K; Michelich, C; McCarthy, G

Published Date

  • 2004

Published In

Volume / Issue

  • 2004 /

Start / End Page

  • 4417 - 4420

PubMed ID

  • 17271285

International Standard Serial Number (ISSN)

  • 1557-170X

Digital Object Identifier (DOI)

  • 10.1109/IEMBS.2004.1404228

Language

  • eng

Conference Location

  • United States