NDLI: Spatial dependence of CBV-fMRI: a comparison between VASO and contrast agent based methods

Content Provider	IEEE Xplore Digital Library
Author	Tao Jin Kim, S.-G.
Copyright Year	2006
Description	Author affiliation: Dept. of Radiol., Pittsburgh Univ., PA (Tao Jin; Kim, S.-G.)
Abstract	In functional magnetic resonance imaging (fMRI), the cerebral blood volume (CBV) based approach with exogenous contrast agent has been found to have better spatial specificity than the widely applied blood oxygenation level-dependent (BOLD) method. Recently, an endogenous CBV-based contrast, vascular space occupancy-dependent (VASO) technique, was developed for human research. However, the spatial specificity of VASO functional maps is still unclear. In this report, VASO-weighted high-resolution functional map was obtained at 9.4 T. Its spatial dependence across cortical layers was compared to the traditional CBV-weighted fMRI map obtained using contrast agent injection. Both functional maps show good localization at the middle cortical layer
Sponsorship	IEEE EMB
Starting Page	25
Ending Page	28
File Size	261210
Page Count	4
File Format	PDF
ISBN	1424400325
ISSN	1557170X
DOI	10.1109/IEMBS.2006.259553
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2006-08-30
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Blood Animals Humans Spatial resolution Magnetic fields Magnetic resonance imaging Signal mapping Signal resolution Signal to noise ratio Magnetization cortical-layer-dependence fMRI VASO CBV-weighted MION
Content Type	Text
Resource Type	Article
Subject	Signal Processing Biomedical Engineering Health Informatics Computer Vision and Pattern Recognition

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4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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