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. 1999 May;9(2):285-93.

The clinical applications of functional MR imaging

V M Haughton  1 , P A Turski, B Meyerand, G Wendt, C H Moritz, J Ulmer
Affiliations
  • PMID: 10318715

The clinical applications of functional MR imaging

V M Haughton et al. Neuroimaging Clin N Am. 1999 May.

Abstract

Functional MR imaging, similar to positron-emission tomography, shows the regions in which cerebral blood flow changes as neurons are active in the performance of cognitive tasks. Blood flow increases (activation) exceed that needed to supply oxygen for the increased metabolic needs for the increased neuronal activity. Therefore, in regions with activation, the deoxyhemoglobin concentration in the capillary blood decreases below levels found in the brain where neurons are not active.

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