Magnetic resonance perfusion imaging in the study of language  

Oleh:

Hillis, Argye E.

Jenis: Article from Journal - ilmiah internasional
Dalam koleksi: Brain and Language (Full Text) vol. 102 no. 2 (2007), page 165-175.
Topik: Magnetic resonance imaging; Perfusion-weighted; Stroke; Aphasia
Fulltext: 102_02_Hillis.pdf (453.38KB)

Isi artikel

This paper provides a brief review of various uses of magnetic resonance perfusion imaging in the investigation of brain/language relationships. The reviewed studies illustrate how perfusion imaging can reveal areas of brain where dysfunction due to low blood Xow is associated with speciWc language deWcits, and where restoration of blood Xow to improve the tissue function results in recovery of those deWcits. This sort of evidence helps to reveal areas of the brain that are essential to a particular language task. Other studies have provided clues regarding the mechanisms of early language recovery, or have shown how perfusion imaging can identify patients with chronic hypoperfusion due to cerebrovascular stenosis in whom the BOLD eVect in fMRI may be absent or reduced in areas of neural activation.

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