Functional MRI of human brain activation at high spatial resolution
- 1 January 1993
- journal article
- Published by Wiley in Magnetic Resonance in Medicine
- Vol. 29 (1), 139-144
- https://doi.org/10.1002/mrm.1910290126
Abstract
Functional activation maps of the human visual cortex were obtained at a spatial resolution almost two orders of magnitude better than achievable by positron emission tomography and within measuring times of a few seconds. Transient alterations in the concentration of paramagnetic deoxyhemoglobin were conveniently detected at 2.0‐T with use of RF‐spoiled FLASH MRI sequences employing gradient echo times of 6 to 60 ms and voxel sizes of 2.5 to 39 μl.Keywords
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