title: [Functional MRI: imaging of motor cortex function].
abstract: OBJECTIVE
  To image the motor cortex with functional MRI (fMRI), and locate the activated area with the proportional grid of Talairach.
  
  
  METHODS
  Descriptive.
  
  
  METHODS
  St. Radboud Academic Hospital Nijmegen.
  
  
  METHODS
  In ten volunteers functional images of the motor cortex were made during execution of a motor task (finger movements). From the functional images the positions of activated areas were calculated using the 3D Talairach grid system.
  
  
  RESULTS
  fMRI of the motor cortex was possible using a 1.5 T MRI scanner. Task activation of the motor cortex gave a signal increase in Brodmann's area 4, the precentral gyrus.
  
  
  CONCLUSIONS
  Imaging of the active motor cortex with fMRI is feasible. The use of the 3D Talairach proportional grid system for the calculation of the position of an activated area in the motor cortex is possible with adequate accuracy.
authors.affiliation: Afd. Radiologie, Academisch Ziekenhuis St. Radboud, Nijmegen.
authors.forename: B F
authors.initials: BF
authors.lastname: van der Kallen
authors.forename: G
authors.initials: G
authors.lastname: Rijpkema
authors.forename: L J
authors.initials: LJ
authors.lastname: van Erning
authors.forename: J L
authors.initials: JL
authors.lastname: Merx
authors.forename: M W
authors.initials: MW
authors.lastname: Horstink
authors.forename: H O
authors.initials: HO
authors.lastname: Thijssen
mesh_terms: D000328:Adult; D001931:Brain Mapping / Q000379:methods; D006225:Hand / Q000502:physiology; D006801:Humans; D008279:Magnetic Resonance Imaging / Q000379:methods*; D008297:Male; D008875:Middle Aged; D009044:Motor Cortex / Q000033:anatomy & histology / Q000502:physiology*; D009068:Movement
vernacular_title: Functionele MRI: het afbeelden van motorische hersenfuncties.