• Aucun résultat trouvé

white matter changes

White matter changes in corticobasal degeneration syndrome and correlation with limb apraxia

White matter changes in corticobasal degeneration syndrome and correlation with limb apraxia

... Main Outcome Measures: Gray and white matter changes in early CBDS. Results: Diffusion tensor imaging revealed decreases in fractional anisotropy in the long frontoparietal connect- ing tracts, the ...

6

Does the Framingham Stroke Risk Profile predict white-matter changes in late-life depression?: Vascular risk and white-matter changes in depression

Does the Framingham Stroke Risk Profile predict white-matter changes in late-life depression?: Vascular risk and white-matter changes in depression

... with white-matter changes quantified with ...significant changes in white-matter connectivity, to a degree not observed within the control ...

9

Early white matter changes in CADASIL: evidence of segmental intramyelinic oedema in a pre-clinical mouse model

Early white matter changes in CADASIL: evidence of segmental intramyelinic oedema in a pre-clinical mouse model

... Cerebral white matter changes are a consistent manifestation of SVD on neuroimaging, progressing silently for many years before becoming clinically ...these changes remains poorly understood, ...

17

White Matter Changes in Comatose Survivors of Anoxic Ischemic Encephalopathy and Traumatic Brain Injury: Comparative Diffusion-Tensor Imaging Study

White Matter Changes in Comatose Survivors of Anoxic Ischemic Encephalopathy and Traumatic Brain Injury: Comparative Diffusion-Tensor Imaging Study

... and validity of l 1 and l ⊥ , preferably comparing the DT imaging results with postmortem pathologic findings. Although the neurologic presenta- tion is similar in patients with persis- tent consciousness impairments ...

11

White matter abnormalities in Parkinson’s disease illuminated via TDI

White matter abnormalities in Parkinson’s disease illuminated via TDI

... C YCLOTRON R ESEARCH C ENTRE | http://www.cyclotron.ulg.ac.be | c.phillips@ulg.ac.be & erik.ziegler@ulg.ac.be Global accuracy: 86.1% Predictive Value (ValVal, Met carriers): 94.4%, 77.8% • Track density imaging can ...

1

Organising white matter in a brain without corpus callosum fibres

Organising white matter in a brain without corpus callosum fibres

... limbic white matter bundles (fronto-occipital, arcuate and superior longitudinal fascicles, cingulum) in three subjects with corpus callosum agenesis (Forkel, et ...

30

Adaptive Multi-modal Particle Filtering for Probabilistic White Matter Tractography

Adaptive Multi-modal Particle Filtering for Probabilistic White Matter Tractography

... Contact: Aymeric.Stamm@irisa.fr Abstract. Particle filtering has recently been introduced to perform probabilistic tractography in conjunction with DTI and Q-Ball models to estimate the diffusion information. Particle ...

13

Comparison of distances for supervised segmentation of white matter tractography

Comparison of distances for supervised segmentation of white matter tractography

... We conducted multiple experiments on the the Human Connectome Project (HCP) dMRI datasets, see [13], [20], (90 gradients; b = 1000; voxel size = (1.25 x 1.25 x 1.25 mm 3 )). The reconstruction step was performed using ...

5

Reduced white matter integrity in sibling pairs discordant for bipolar disorder.

Reduced white matter integrity in sibling pairs discordant for bipolar disorder.

... for white matter abnormalities and risk for bipolar ...total white matter volume (35) and by decreased expression of white matter-related genes in patients with bipolar disorder ...

18

Parsimonious Approximation of Streamline Trajectories in White Matter Fiber Bundles

Parsimonious Approximation of Streamline Trajectories in White Matter Fiber Bundles

... This implies that the approximation error of the proposed scheme can be easily controlled. The resulting parsimonious representation, up to a reasonable approximation level, pre- serves both the shape and the structural ...

12

White Matter Information Flow Mapping from Diffusion MRI and EEG

White Matter Information Flow Mapping from Diffusion MRI and EEG

... anatomically constrained particle filter tracking (Girard et al., 2014) also implemented in dipy. This required the segmentation of the brain into white matter, gray matter and cerebrospinal fluid ...

29

Diffusion Driven Label Fusion for White Matter Multi-Atlas Segmentation

Diffusion Driven Label Fusion for White Matter Multi-Atlas Segmentation

... label of voxel x for the subject i; P are the principal directions of diffusion in the ’test’ subject and D sl (x) are the directions of tract l in the voxel x of the ’train’ subject s. References [Wassermann et ...

3

Amyloid burden and white matter hyperintensities mediate age-related cognitive differences

Amyloid burden and white matter hyperintensities mediate age-related cognitive differences

... age-associated changes across specific cognitive domains remains to be better understood, however, since many studies have used relatively rudimentary neuropsychological ...subtle changes in cognition most ...

34

Lesion-Robust White-Matter Bundle Identification through Diffusion Driven Label Fusion

Lesion-Robust White-Matter Bundle Identification through Diffusion Driven Label Fusion

... Methods. Let L s , s ∈ S be a set of 3D volumes in a common space representing the labeling of template subjects S. Let {l i } be the set of labels representing fiber bundles and grey matter structures in the ...

5

White matter fiber bundles as a source model in the MEG inverse problem

White matter fiber bundles as a source model in the MEG inverse problem

... References: * Université Côte d'Azur, Inria Sophia Antipolis - Méditerranée, France Kostiantyn Maksymenko* Théodore Papadopoulo* Samuel Deslauriers-Gauthier* White matter fiber bundles as a source model in ...

2

Non-local robust detection of DTI white matter differences with small databases.

Non-local robust detection of DTI white matter differences with small databases.

... 4. Whitcher, B., Wisco, J.J., Hadjikhani, N., Tuch, D.S.: Statistical group comparison of diffusion tensors via multivariate hypothesis testing. Magnetic Resonance in Medicine (57) (2007) 1065–1074 5. Commowick, O., ...

9

A Comprehensive Riemannian Framework for the Analysis of White Matter Fiber Tracts

A Comprehensive Riemannian Framework for the Analysis of White Matter Fiber Tracts

... of white matter fibers, of interest in applications as varied as the differential diagnosis of white matter diseases, neurosurgery or a study of brain connectvity, requires differ- ent ...

5

Brain white matter damage and its association with neuronal synchrony during sleep

Brain white matter damage and its association with neuronal synchrony during sleep

... Areas in traumatic brain injury (TBI) group where slow wave negative phase duration is correlated (blue, negative correlation; red to yellow, positive correlation) with (a) fractional[r] ...

37

Shared genetic variance between obesity and white matter integrity in Mexican Americans.

Shared genetic variance between obesity and white matter integrity in Mexican Americans.

... Evaluation of heritability estimates for two adiposity mea- surements and the fractional anisotropy revealed that additive genetic factors explained 58% and 57% of BMI and WC, respec- tively and nearly 50% of ...

13

Multiethnic genome-wide association study of cerebral white matter hyperintensities on MRI.

Multiethnic genome-wide association study of cerebral white matter hyperintensities on MRI.

... Intriguingly, three of the five regions significantly associated with WMH burden as well as one suggestive locus contained variants in genes implicated in malignant brain tumors of the white matter that ...

76

Show all 2646 documents...

Sujets connexes