ISSN:
1352-8661
Keywords:
functional magnetic resonance imaging
;
fMRI
;
functional magnetic resonance angiography
;
fMRA
;
motor systems
;
vessels
Source:
Springer Online Journal Archives 1860-2000
Topics:
Medicine
,
Physics
Notes:
Abstract Functional MR angiography (fMRA) images have been generated from the brain of healthy volunteers, in response to a hand motor task. Two sets of 3D phase-contrast MR images were, therefore, acquired, one during a resting and one during a task activation period. The MR images measured during rest were subtracted from those measured during task performance. The fMRA images were eventually obtained by calculating maximum intensity projections from the set of subtraction images. The results confirm earlier observations that there is a significant functional response from pial veins to motor activity.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF01705267
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