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Functional Recovery After Cerebral Ischemia: Studies in the Motor System

  • F. Chollet
  • V. Di Piero
  • R. J. S. Wise
  • A. Rascol
  • R. S. J. Frackowiak
Conference paper

Abstract

Positron emission tomography (PET) allows us to measure activity-related changes of regional cerebral blood flow (rCBF) in man. This technique can correlate human cerebral anatomy with function. It is assumed that during the performance of a task (motor, visual, sensory, cognitive) the regions of the brain involved in its execution have increased metabolism and/or perfusion. rCBF is the best variable to measure such changes because it is highly correlated with the early phase of such elicited metabolic activity and its rapid assessment allows repetitive measurements. Thus, rCBF measurements in a control state and during the performance of a task are used to create specific images of changes in task-specific brain activity. Several studies have already been published about motor, sensory, visual, and cognitive activation and they contribute to our knowledge of functional mapping of the brain [6, 8].

Keywords

Positron Emission Tomography Sensorimotor Cortex Positron Emission Tomography Camera Primary Sensorimotor Cortex rCBF Change 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer-Verlag Berlin Heidelberg 1991

Authors and Affiliations

  • F. Chollet
    • 1
    • 2
  • V. Di Piero
    • 1
  • R. J. S. Wise
    • 1
  • A. Rascol
    • 2
  • R. S. J. Frackowiak
    • 1
  1. 1.MRC Cyclotron UnitHammersmith HospitalLondonUK
  2. 2.Department of NeurologyHôpital PurpanToulouseFrance

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