Magnetic resonance imaging of brain function.
New techniques for imaging of brain function are described, which utilize magnetic resonance imaging. Echo-planar imaging (EPI), the preferred method, is introduced and technical issues are discussed. Two recent approaches for measurement of blood flow are explained: contrast agent bolus tracking and black blood perfusion. An intrinsic contrast technique, which utilizes the paramagnetism of deoxyhemoglobin, is presented. Results from experiments on functional imaging of the human brain are shown, and the specific advantages of MRI for this purpose are discussed.
Turner
R
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Laboratory of Cardiac Energetics, National Heart, Lung and Blood Institute, National Institute of Health, Bethesda, MD 20892.
D000818:Animals; D001921:Brain / Q000033:anatomy & histology*; D002560:Cerebrovascular Circulation / Q000502:physiology; D003287:Contrast Media; D017352:Echo-Planar Imaging; D006801:Humans; D007089:Image Enhancement / Q000379:methods; D007091:Image Processing, Computer-Assisted; D008279:Magnetic Resonance Imaging
D003287:Contrast Media