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The analysis of functional magnetic resonance images
Statistical Methods in Medical Research, 1997Functional magnetic resonance imaging (fMRI) is a powerful technique for measuring brain activity associated with the performance of different mental tasks. We briefly describe this technique and the images it produces and review methods of analysis that have been applied to fMRI data.
S, Rabe-Hesketh +2 more
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Functional magnetic resonance imaging: functional mapping
2012Abstract Blood oxygen level-dependent (BOLD) functional magnetic resonance imaging (fMRI) is used primarily to identify the location of eloquent brain functions to spare during epilepsy surgery. Motor tapping yields robust identification of the primary motor cortex, and visual checkerboard stimuli identify primary visual cortex.
William D, Gaillard, Madison M, Berl
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Clinical Functional Magnetic Resonance Imaging
Cognitive and Behavioral Neurology, 2007To describe a new series of evaluation/procedural codes that were approved by the American Medical Association (AMA) CPT Editorial Panel for use in billing for these procedures by physicians or licensed clinical psychologists.As of January of 2007, 3 distinct CPT codes for billing related to the functional magnetic resonance imaging (fMRI) procedure ...
John, Hart, Stephen M, Rao, Marc, Nuwer
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A Primer on Functional Magnetic Resonance Imaging
Neuropsychology Review, 2007In this manuscript, basic principles of functional magnetic resonance imaging (fMRI) are reviewed. In the first section, two intrinsic mechanisms of magnetic resonance image contrast related to the longitudinal and transverse components of relaxing spins and their relaxation rates, T(1) and T(2), are described.
Gregory G, Brown +3 more
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Magnetic resonance imaging of brain function
Annals of Neurology, 1994New 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.
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Functional magnetic resonance imaging in children
Seminars in Pediatric Neurology, 1999Functional magnetic resonance imaging (fMRI) allows for the noninvasive mapping of the anatomical location of disparate functional brain activities. The means for carrying out fMRI involves the use of existing MR technology coupled with a special software image acquisition program or the use of a specially designed head coil.
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Functional Diffusion Magnetic Resonance Imaging
2018Functional diffusion magnetic resonance imaging (fDMRI) is a noninvasive technique that allows elucidating physiological and anatomical changes at a microscopic scale by detection of water molecular displacements in tissue structures. These displacements likely reflect microstructural changes associated with neuronal or glial cells activation.
Rita Maria Rocha, Oliveira +2 more
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The Basics of Functional Magnetic Resonance Imaging
2009In magnetic resonance imaging (MRI), the signal that is measured usually arises from the nuclei of the tissue’s hydrogen atoms (i.e. protons). A proton possesses a physical property, its spin, which behaves roughly speaking like a compass needle: each spin has a small magnetic dipole moment and aligns in an external magnetic field. If tissue is brought
Deichmann, R. +2 more
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AUDITORY SYSTEM: Functional Magnetic Resonance Imaging
Neuroimaging Clinics of North America, 2001Functional MR imaging (fMRI) is being used increasingly to explore the human central auditory system. The considerable background noise produced by echo-planar imaging (EPI) and other fMRI sequences, however, interferes in an unpredictable way with the experimental stimuli. Several approaches exist to overcome this problem.
E. Seifritz +4 more
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Constrained ICA for functional magnetic resonance imaging
Proceedings of the 2005 European Conference on Circuit Theory and Design, 2005., 2006Use of physiologically plausible functional constraints on components obtained by functional magnetic resonance scan decomposition is demonstrated to be instrumental in biasing ICA towards more realistic solutions, and to allow to extract only significant components automatically.
BALSI, Marco +3 more
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