DETECTION OF BRAIN ACTIVATION USING OXYGENATION SENSITIVE FUNCTIONAL SPECTROSCOPY

Authors
HENNIG T ERNST T SPECK O DEUSCHL G FEIFEL E
Citation
T. Hennig et al., DETECTION OF BRAIN ACTIVATION USING OXYGENATION SENSITIVE FUNCTIONAL SPECTROSCOPY, Magnetic resonance in medicine, 31(1), 1994, pp. 85-90
Citations number
14
Categorie Soggetti
Radiology,Nuclear Medicine & Medical Imaging
Journal title
Magnetic resonance in medicine → ACNP
ISSN journal
07403194
Volume
31
Issue
1
Year of publication
1994
Pages
85 - 90
Database
ISI
SICI code
0740-3194(1994)31:1<85:DOBAUO>2.0.ZU;2-4
Abstract
A nonwater-suppressed localized spectroscopy experiment using the PRES S-sequence has been used to study the signal changes of the water reso nance during cortical activation. Significant effects with an effect-t o-noise ratio up to 50:1 for a single shot experiment have been observ ed upon photic stimulation. The exceedingly high signal-to-noise ratio of the experiment was used to demonstrate signal changes as low as 0. 1% after electrical stimulation of the median nerve.