diffusion tensor magnetic resonance images
Spatial transformations of diffusion tensor magnetic resonance images
... Ten random affine transformations were generated and applied to the phantom in this way. The transformed data sets are resampled using a nearest neighbor approach (in order to avoid artifacts that might be introduced by ...
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Diffusion tensor magnetic resonance imaging and fibre tractography in the brain
... the diffusion tensor maps prior to calculating the corresponding anisotropy ...the diffusion ten sor, Although it has been shown that such transformations can be done robustly [30], performing the ...
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Comparison of diffusion tensor imaging by cardiovascular magnetic resonance and gadolinium enhanced 3D image intensity approaches to investigation of structural anisotropy in explanted rat hearts
... Structure tensor analysis of high resolution MR images The following steps were applied to the FLASH images: segmentation, conversion to a stack, boundary smooth- ing, intensity gradient computation, ...
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Reduced Fractional Anisotropy on Diffusion Tensor Magnetic Resonance Imaging After Hypoxic-Ischemic Encephalopathy
... ⫽ .05; 1.14 [0.63–1.45] vs 1.52 [1.39 –1.74], P ⫽ .0107, respectively). However, infants with moderate abnor- mality on visual inspection exhibited values similar to those in control infants (anterior WM: 1.69 [1.44 ...
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Probing dynamic myocardial microstructure with cardiac magnetic resonance diffusion tensor imaging
... specimen images provided in the paper (their Figure eight D and E) appar- ently show just such a heterogeneous mixture of local sheet orientations, within a region smaller than an im- aging ...the diffusion ...
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Effects of Xiaoshuan enteric coated capsule on neurovascular functions assessed by quantitative multiparametric MRI in a rat model of permanent cerebral ischemia
... and diffusion tensor imaging (DTI) were used to measure cerebral infarct volume, edema and white matter fiber integrity, ...H-magnetic resonance spectroscopy ( 1 ...structural magnetic ...
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Heim, Susanne (2007): Statistical Diffusion Tensor Imaging: From Data Quality to Fiber Tracking.. Dissertation, LMU München: Fakultät für Mathematik, Informatik und Statistik
... Magnetic resonance diffusion tensor imaging (DTI) allows to infere the ultrastructure of living ...raw images and the reliable visualization of ...integrate diffusion ...
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In vivo cardiovascular magnetic resonance diffusion tensor imaging shows evidence of abnormal myocardial laminar orientations and mobility in hypertrophic cardiomyopathy
... cardiac diffusion weighted stimulated echo acquisition mode (STEAM) single shot echo planar im- aging (EPI) sequence used has been previously described ...6 diffusion encoding directions at b = 350 s/mm 2 ...
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Resting State Functional Magnetic Resonance and Diffusion Tensor Imaging of Hemiplegic Cerebral Palsy Patients Treated with Constraint-Induced Movement Therapy: Predictors and Clinically Correlated Evidence of Neuroplasticity
... (http://www.fmrib.ox.ac.uk/fsl) using the standard steps (Jenkinson, Beckmann, et al. 2012; Woolrich, Jbabdi, et al. 2009; Smith, Jenkinson, et al. 2004). Both anatomical and resting state data were brain extracted using ...
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Combination of diffusion tensor and functional magnetic resonance imaging during recovery from the vegetative state
... fMRI images were first realigned to the first image in the dataset in order to reduce movement arti- ...Normalized images were smoothed with an 8 mm Gaussian ...
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MAGNETIC RESONANCE WATER SELF-DIFFUSION TENSOR ENCODING OPTIMIZATION METHODS FOR FULL BRAIN ACQUISITION
... Diffusion tensor imaging is a sensitive modality that is very promising in radiological and psychiatric applications (Le Bihan et ...quality images with minimal artifacts. The data sufficiency ...
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Anisotropic diffusion weighted contrast in magnetic resonance images of the human subject
... movement. Diffusion in these circumstances is said to be restricted as the molecules appear not to have moved as far as one would expect from consideration of the value of the self diffusion coefficient ...
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Reproducibility of in vivo diffusion tensor cardiovascular magnetic resonance in hypertrophic cardiomyopathy
... in diffusion tensor imaging that FA and MD values are biased by SNR due to the Rician noise distribution and due to the fact that only magnitude images are used to derive the diffusion ...
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White matter abnormalities of corpus callosum in patients with bipolar disorder and suicidal ideation
... DTI: diffusion tensor imaging; HC: health controls; FA: fractional anisotropy; MRI: magnetic resonance imag- ing; WM: white matter; DSM-IV: Diagnostic and Statistical Manual of Mental ...
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Neural Network-Assisted Fiber Tracking of Synthetic and White Matter DT-MR Images
... with diffusion tensor (DT) fields acquired via magnetic resonance imaging (MRI) is improved and applied to real brain DT-MR ...the diffusion matrix at each ...synthetic images ...
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Unknown functions estimation in a parabolic equation arises from Diffusion Tensor Magnetic Resonance Imaging
... The diffusion may be one of the most important and attractive notions in mathe- matical methods for image ...analysis. Diffusion equation is one of the most important models which appears in the MRI, and ...
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MRI in Severe Traumatic Brain Injury: Micro- and Macrostructural Changes
... is tensor-based morpho- metry (TBM), which determines the deformation fi eld required to warp the early image to match the late image within subject (or in cross-sectional studies, the deformation fi eld required to ...
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Anisotropic WM conductivity reconstruction based on diffusion tensor magnetic resonance imaging: a simulation study
... Conductivity tensor of the WM was obtained from the DT-MRI data measurements acquired from a healthy human subject and shared the same ei- genvectors with the water diffusion tensors based on Basser’s ...
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Neural circuitry at age 6 months associated with later repetitive behavior and sensory responsiveness in autism
... Diffusion-weighted images were processed with DTI- prep, which detects common artifacts, corrects for mo- tion and eddy current deformations, and flags bad gradients for manual removal by expert raters [51, ...
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Clinical Reasoning: Acute onset facial droop in a 36-year-old pregnant woman
... MRI, magnetic resonance angiography, and magnetic resonance venography of the brain demonstrated no vascular anomalies but revealed multifocal areas of restricted diffusion in the ...
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