Technical and functional validations of High Angular Resolution Diffusion Imaging (HARDI)-MR tractography in paediatric epilepsy patients
نویسندگان
چکیده
منابع مشابه
Diffusion Simulation Tractography for High Angular Resolution Diffusion Imaging
Introduction While the standard diffusion tensor imaging (DTI) approach has proven to be a valuable tool in detecting local tissue structure and reconstructing neural fiber networks in brain, it cannot accurately reveal the white matter structure in the presence of multiple fiber orientations within a single voxel. In particular, for crossed fibers, the second-order diffusion tensor model fails...
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Imaging genetics is a new field that extends methods from quantitative genetics to handle brain images. Its goal is to identify features of the brain that are genetically influenced, and then find specific variations at the genomic level that contribute to them. Recent studies using diffusion tensor imaging (DTI) in twins have discovered specific genomic variations that influence standard DTI-d...
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This second article of the 2-part review builds on the theoretic background provided by the first article to cover the major technical factors that affect image quality in diffusion imaging, including the acquisition sequence, magnet field strength, gradient amplitude, and slew rate as well as multichannel radio-frequency coils and parallel imaging. The sources of many common diffusion image ar...
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Diffusion weighted magnetic resonance (MR) imaging is a powerful tool to investigate white matter microstructure, by mapping local 3D displacement profiles of water molecules in brain tissue. Highangular resolution diffusion imaging (HARDI) schemes have been employed to resolve fiber crossing and more complex diffusion geometries. Most recently, the tensor distribution function (TDF) has been p...
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ژورنال
عنوان ژورنال: Frontiers in Human Neuroscience
سال: 2013
ISSN: 1662-5161
DOI: 10.3389/conf.fnhum.2013.212.00059