Diffusion imaging (DTI)
Denoising and fast diffusion imaging with physically constrained sparse dictionary learning
... what diffusion imaging protocol is used, be it scalar DWI, DTI, HARDI, or DSI, there is always a trade-off between quality of the data and acquisition ...the diffusion signal will ...
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Combined diffusion imaging and MR spectroscopy in the diagnosis of human prion diseases.
... conventional imaging and can give information on the ongoing pathologic processes: Neuronal loss or stress will lead to a decrease in NAA, while gliosis will induce an increase in the resonance of ...
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Towards real-time diffusion imaging : noise correction and inference of the human brain connectivity
... Diffusion imaging is characterized by an exponential decay and is consequently inher- ently corrupted by ...resolution diffusion imaging (HARDI) and hybrid diffusion imag- ing (HYDI) ...
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La capsule externe et la cognition : Une étude High Angular Resolution Diffusion Imaging (HARDI) IRM des faisceaux cholinergiques
... de diffusion obtenues dans ces faisceaux et la performance ...resolution diffusion imaging) de 34 participants âgés avec des résultats normaux au MMSE (Mini-Mental State Examination) a été faite, ...
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Inference of a human brain fiber bundle atlas from high angular resolution diffusion imaging
... tracts. Diffusion features are also projected onto the same skeleton surface of each subject, using highest FA strategy [ Yushkevich et ...and diffusion prop- ...bundle diffusion properties between ...
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Template-Based Tractography for Clinical Neonatal Diffusion Imaging Data
... the diffusion elapsed time -related to bvalue- and how well we analyze the possible paths of water displacement in the three dimensional space -namely number of diffusion gradient ...
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Brain Diffusion Imaging and Tractography to Distinguish Clinical Severity of Human PLP1-Related Disorders
... increasing diffusion in supratentorial ...increased diffusion and decreased myelination score on the supratentorial WM demonstrate the myelin defect but may not serve to classify the clinical severity ...
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Diffusion Maps Clustering for Magnetic Resonance Q-Ball Imaging Segmentation
... a diffusion maps clustering method applied to diffusion MRI in order to segment complex white matter fiber ...that diffusion tensor imaging (DTI) is restricted in complex fiber regions with ...
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A new multi-directional fiber model for low angular resolution diffusion imaging
... la diffusion de documents scientifiques de niveau recherche, publiés ou non, émanant des établissements d’enseignement et de recherche français ou étrangers, des laboratoires publics ou ...
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Cerebral white matter analysis using diffusion imaging
... (The brain con- sists of two main parts: the white matter, containing axons that transmit information; and the gray matter, containing cell bodies of neurons that integrate [r] ...
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Multivariate prediction of functional outcome using lesion topography characterized by acute diffusion tensor imaging
... characterization. This result has important repercussions for the long- debated independent role of stroke topography vs. baseline clinical variables. For example, using voxel-based lesion symptom mapping (VLSM), two ...
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Diffusion Tensor Imaging to Predict Long-term Outcome after Cardiac Arrest: A Bicentric Pilot Study.
... Another major limitation of prognostic studies in patients with anoxic–ischemic encephalopathy is that the clinicians are not fully blinded to the result of the tests (and in particular, the MRI studies). Therefore, some ...
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Human brain diffusion tensor imaging at submillimeter isotropic resolution on a 3Tesla clinical MRI scanner
... acquiring only 7 out of the 12 k z planes), although at the cost of SNR. In this study, high-resolution DTI data were acquired from cooperative subjects who were able to stay still during scans, and thus we did not have ...
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Diffusion-weighted magnetic resonance imaging is effective to detect ileocolonic ulcerations in Crohn's disease
... resonance imaging examinations MREC with diffusion-weighted and injected sequences were performed in all patients per standard protocol in our Radiology ...MRI imaging examinations with no bowel ...
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Study of the diffusion in polymer solutions and hydrogels by NMR spectroscopy and NMR imaging
... and diffusion through the swollen gel layer controlled the release at a loading levels of 39% and 20%, ...The diffusion coefficients of water can be obtained from profile fitting and ...
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ZOOM or non-ZOOM? Assessing spinal cord diffusion tensor imaging protocols for multi-centre studies
... correction, diffusion tensor fitting algorithm, spinal cord ROI extraction and partial volume ...raw diffusion weighted data, with Rician noise characteristics typical of the low SNR spinal cord images, ...
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A finite elements method to solve the Bloch–Torrey equation applied to diffusion magnetic resonance imaging
... (restricted diffusion between parallel ...the diffusion time is much shorter, on the order of tens of milliseconds, and the gradient amplitudes are ...
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Age-Related Modifications of Diffusion Tensor Imaging Parameters and White Matter Hyperintensities as Inter-Dependent Processes
... Indeed, diffusion changes are currently interpreted as the result of a neurodegenerative process, occurring after gray matter alterations but according to the continuum theory it would rather reflect ...
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View of Early Diffusion Weighted Imaging versus T1 and T2 Imaging to Predict Medium-Term Outcome after Moderate Hypothermia for Neonatal Hypoxic-Ischemic Encephalopathy
... de diffusion sur les séquences morphologiques sont peut-être dues à notre technique : en effet, nous utilisions une valeur maximale de facteur b de 600 s/mm 2 (contre 1 000 à 1 200 s/ mm 2 dans les études ...
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Diffusion tensor imaging and voxel based morphometry study in amyotrophic lateral sclerosis: relationships with motor disability.
... SUMMARY The aim of this study was to investigate the extent of the cortical and sub-cortical lesions by using in combination voxel-based diffusion tensor imaging (DTI) and voxel-based morphometry (VBM). We ...
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