Quantitation of regional cerebral blood flow increases in prefrontal cortex during a working memory task: a steady-state arterial spin-tagging study.
Neuroimage
; 8(1): 44-9, 1998 Jul.
Article
de En
| MEDLINE
| ID: mdl-9698574
ABSTRACT
Steady-state arterial spin-tagging MRI approaches were used to quantitate regional cerebral blood flow increases in prefrontal cortex during a working memory ("two-back") task in six normal subjects. Statistically significant increases in cerebral blood flow in prefrontal cortex were observed in all six subjects:
the average increase in cerebral blood flow in activated prefrontal cortex regions was 22 +/- 5 cc/100 g/min (23 +/- 7%). The results demonstrate that spin-tagging approaches can be used to follow focal activation in prefrontal cortex during cognitive tasks.
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Collection:
01-internacional
Base de données:
MEDLINE
Sujet principal:
Éveil
/
Rappel mnésique
/
Traitement d'image par ordinateur
/
Imagerie par résonance magnétique
/
Cortex préfrontal
Limites:
Adult
/
Female
/
Humans
/
Male
Langue:
En
Journal:
Neuroimage
Sujet du journal:
DIAGNOSTICO POR IMAGEM
Année:
1998
Type de document:
Article
Pays d'affiliation:
États-Unis d'Amérique