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Article: New findings from National Institute of Neurological Disorders and Stroke describe advances in magnetic resonance.
- Article from:
- Education Letter
- Article date:
- November 11, 2009
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According to recent research from the United States, "Signal fluctuations in functional magnetic resonance imaging (fMRI) call result from a number of sources that may have a neuronal., physiologic or instrumental origin. To determine the relative contribution of these Sources, we recorded physiological (respiration and cardiac) signals Simultaneously with fMRI in human Volunteers at rest with their eyes closed."
"State-of the-arty technology was used including high inagnetic field (7 T), a niultichannel detector array and high-resolution (3 mm(3)) echo-planar imaging. We investigated the relative contribution of thermal noise and other sources of variance to ...