diffusion anisotropy
In vivo MR determination of water diffusion coefficients and diffusion anisotropy: correlation with structural alteration in gliomas of the cerebral hemispheres
... In response to these technical limitations a motion-insensitive pulse sequence that uses standard MR hardware has been developed at our institution for the rapid quantitative deter- mination of water ADCs in three ...
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Diffusion Anisotropy of the Internal Capsule and the Corona Radiata in Association with Stroke and Tumors as Measured by Diffusion weighted MR Imaging
... that diffusion anisot- ropy in the white matter and the apparent diffusion coefficient change under pathologic conditions (17, ...and diffusion anisotropy (17, 20, ...compare diffusion ...
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Diffusion Anisotropy Changes in the Brains of Professional Boxers
... 5. Diffusion anisotropy maps and diffusion tensor imaging-based white matter trac- tography of a representative boxer (A and B ; 27 years old) and a control (C and D; 29 years ...to anisotropy ...
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Diffusion Tensor Microscopy Indicates the Cytoarchitectural Basis for Diffusion Anisotropy in the Human Hippocampus
... of diffusion tensor methods with microscopy acquisitions capable of distinguishing particu- lar hippocampal lamina that are selectively vulnerable to different disease ...as diffusion tensor microscopy ...
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Diffusion Anisotropy in the Corpus Callosum
... increased anisotropy in posterior areas within the corpus callosum was present regardless of sex or age; this finding sug- gested, but did not prove, that this observation may represent the case in healthy control ...
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Significant Temporal Evolution of Diffusion Anisotropy for Evaluating Early Response to Radiosurgery in Patients with Vestibular Schwannoma: Findings from Functional Diffusion Maps
... of diffusion changes in vestibular schwannoma following SRS treatment can be divided into 2 stages: 1) the acute response (from week 2 to week 8) charac- terized by cell swelling and disruption of the ...
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Evolution of Water Diffusion and Anisotropy in Hyperacute Stroke: Significant Correlation between Fractional Anisotropy and T2
... tional anisotropy (FA) ...anisotropic diffusion of water, the FA metric provides a superior contrast-to-noise ratio as a function of the signal-to-noise ratio (20, 21, ...the diffusion ...
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Diffusion tensor imaging for characterizing tumor microstructure and improving diagnostic performance on breast MRI: a prospective observational study
... characterize diffusion directionality (anisotropy) in addition to ADC ...Water diffusion within biological tissue is often anisotropic due to direc- tionally dependent restriction imposed by ...
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Possible axonal regrowth in late recovery from the minimally conscious state
... used diffusion tensor imaging (DTI) to study 2 patients with traumatic brain ...apparent diffusion constants and diffusion anisotropy identified widespread altered diffusivity and decreased ...
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Investigation of Apparent Diffusion Coefficient and Diffusion Tensor Anisotropy in Acute and Chronic Multiple Sclerosis Lesions
... apparent diffusion coefficient (ADC) values for normal white and gray matter are virtually identical, cerebral white matter shows varying degrees of diffusion anisotropy, while the gray matter ...
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High resolution diffusion weighted MR of fresh and fixed cat spinal cords: evaluation of diffusion coefficients and anisotropy
... The diffusion-weighted images obtained in the fixed cord specimens did not show the signal differences observed in the fresh specimens (Fig 5A and ...The diffusion-weighted image sequence is influ- enced by ...
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Ultra High Field Diffusion MRI Reveals Early Axonal Pathology in Spinal Cord of ALS mice
... synaptic and neuronal function occur well before neuronal death [41], supporting the principal role of axonal degen- eration in the neuropathological process [3]. The earlier compromise of motor axons, and alterations in ...
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A change in brain white matter after shunt surgery in idiopathic normal pressure hydrocephalus: a tract-based spatial statistics study
... DTI: diffusion tensor imaging; DWI: diffusion-weighted image; FA: fractional anisotropy; FAB: frontal assess- ment battery; FLAIR: fluid attenuated inversion recovery; HC: healthy control; INPH: ...
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Using DTI to assess white matter microstructure in Cerebral Small Vessel Disease (SVD) in multi-centre studies.
... Apparent Diffusion Coefficient (a diffusion-weighted imaging measure highly similar to MD) have also been shown to predict future cognitive decline ...
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Can diffusion tensor imaging lesion patterns predict the outcome of ischemic stroke?
... space. Diffusion tensor tracto- graphy (DTT) visualizes the course of major white matter tracts which normally shows anisotropic diffusion in con- trast to the grey matter thus DTI technique can be used to ...
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Apparent Diffusion and Fractional Anisotropy of Diffuse Intrinsic Brain Stem Gliomas
... A standard diffusion-weighted MR imaging scan is very fast and can be accomplished typically within 1 minute of total scanning time. DTI, particularly with a large number of diffu- sion directions, can take ...
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Non-invasive Quantification of Alveolar Morphometry Measurements in Older Never-smokers
... echo diffusion weighted sequence with a matrix size of 128x80, for each of seven 30mm coronal slices (flip angle θ = 4°, TE = ...the diffusion-sensitization ...
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Genetic analysis of cortical thickness and fractional anisotropy of water diffusion in the brain
... fractional anisotropy (FA) of cerebral ...water diffusion, measured from diffusion tensor imaging ...random diffusion of water molecules (Beaulieu, ...
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Value of Diffusion Weighted Imaging and Apparent Diffusion Coefficient in Recent Cerebral Infarctions: A Correlative Study with Contrast Enhanced T1 Weighted Imaging
... that diffusion-weighted images and ADCs are available in the human brain (12, 13), Moseley et al first de- tected ischemic injury of the brain by diffusion- weighted images less than 1 hour after onset of ...
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The role of perfusion and diffusion MRI in the assessment of patients affected by probable idiopathic normal pressure hydrocephalus. A cohort-prospective preliminary study
... periventricular diffusion values in the PP group in basal and post-test evaluations ...higher diffusion values in PVWM area showed a worse clinical score in the baseline ...PVWM diffusion values are ...
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