Elucidating a Magnetic Resonance Imaging-Based Neuroanatomic Biomarker for Psychosis: Classification Analysis Using...
Measures from other brain structures, other imaging modalities including diffusion tensor imaging and functional MRI, ... of principal component analysis to distinguish patients with schizophrenia from healthy controls based on fractional anisotropy ...http://pubmedcentralcanada.ca/pmcc/articles/PMC3192809/?lang=en-ca
Structure-correlated diffusion anisotropy in nanoporous channel networks by Monte Carlo simulations and percolation theory |...
Structure-correlated diffusion anisotropy in nanoporous channel networks by Monte Carlo simulations and percolation theory. ... which allows diffusion perpendicular to the channels. Along the channels, diffusion can be slowed down by "necks" which occur ... R. Valiullin, Diffusion NMR of Confined Systems: Fluid Transport in Porous Solids and Heterogeneous Materials (The Royal ... In this paper we use Monte-Carlo simulations to study diffusion along the channels and perpendicular to them, as a function of ...https://link.springer.com/article/10.1140/epjb/e2017-80145-1?no-access=true
Measuring Microscopic Anisotropy with Diffusion Magnetic Resonance: From Material Science to Biomedical Imaging | SpringerLink
Diffusion magnetic resonance provides a non-invasive probe of material structure at the micro-scale in porous media including ... Lawrenz, M., Finsterbusch, J.: Double-wave-vector diffusion-weighted imaging reveals microscopic diffusion anisotropy in the ... quantification of microscopic diffusion anisotropy and orientational order parameter by diffusion MRI with magic-angle spinning ... Mapping measures of microscopic diffusion anisotropy in human brain white matter in vivo with double-wave-vector diffusion- ...https://link.springer.com/chapter/10.1007/978-3-319-61358-1_10
Diffusion anisotropy of the cervical cord is strictly associated with disability in amyotrophic lateral sclerosis
... P Valsasina ... Pierpaoli C, Basser J. Toward a quantitative assessment of diffusion anisotropy. Magn Reson Med 1996. 36893-906.906 [PubMed] ... An additional set of images without diffusion weighting was also obtained. Diffusion measurements were optimised by using only ... unweighted and diffusion‐weighted images.30 Then, the diffusion tensor was calculated for each voxel of spinal cord using ...http://pubmedcentralcanada.ca/pmcc/articles/PMC2117814/
Diffusion Tensor Imaging in Patients with Thalamic Hemorrhage: Correlations between Diffusion Anisotropy and Motor Recovery
Diffusion Anisotropy, Diffusion Tensor Imaging (DTI), Fractional Anisotropy (FA), Motor Recovery, Thalamic Hemorrhage ... Diffusion Tensor Imaging in Patients with Thalamic Hemorrhage: Correlations between Diffusion Anisotropy and Motor Recovery p. ... Diffusion tensor imaging (DTI) provides quantitative information in the magnetic resonance imaging on the diffusion anisotropy ... Diffusion Tensor Imaging in Patients with Thalamic Hemorrhage: Correlations between Diffusion Anisotropy and Motor Recovery. ...https://www.scientific.net/KEM.326-328.895
Frontiers | Using diffusion anisotropy to characterize neuronal morphology in gray matter: the orientation distribution of...
This reveals a bias in which diffusion MR data predict neuron orientation distributions to have artificially low anisotropy. ... This bias is shown to arise from shortcomings (already at relatively low diffusion weighting) in the Gaussian approximation of ... Subsequently, diffusion MR signals are simulated based on human neocortical neuron reconstructions. ... This reveals a biasin which diffusion MR data predict neuron orientation distributions to have artificially lowanisotropy. This ...https://www.frontiersin.org/articles/10.3389/fnint.2013.00031/full
Diffusion anisotropy measurement of brain white matter is affected by voxel size: underestimation occurs in areas with crossing...
... may directly affect the measurement of fractional anisotropy (FA) in regions where there are crossing fibers. The purpose of ... FA and the apparent diffusion coefficient (ADC) were measured at different sites of the brain. RESULTS When smaller isotropic ... BACKGROUND AND PURPOSE Voxel size/shape of diffusion tensor imaging (DTI) ... Selecting the best index for following the temporal evolution of apparent diffusion coefficient and diffusion anisotropy after ...https://www.semanticscholar.org/paper/Diffusion-anisotropy-measurement-of-brain-white-is-Oouchi-Yamada/1776ce7d4773bfd244181a42236910d443e4ad89
Cognitive Aging, Executive Function, and Fractional Anisotropy: A Diffusion Tensor MR Imaging Study | American Journal of...
The fractional anisotropy (FA) metric provides a simple and robust means to assess the degree of anisotropic diffusion ... Cognitive Aging, Executive Function, and Fractional Anisotropy: A Diffusion Tensor MR Imaging Study. S.M. Grieve, L.M. Williams ... Age-related decline in brain white matter anisotropy measured with spatially corrected echo-planar diffusion tensor imaging. ... Cognitive Aging, Executive Function, and Fractional Anisotropy: A Diffusion Tensor MR Imaging Study ...http://www.ajnr.org/content/28/2/226.full
A Machine Learning Approach for Specification of Spinal Cord Injuries Using Fractional Anisotropy Values Obtained from...
Machine Learning Approach for Specification of Spinal Cord Injuries Using Fractional Anisotropy Values Obtained from Diffusion ... Machine Learning Approach for Specification of Spinal Cord Injuries Using Fractional Anisotropy Values Obtained from Diffusion ...https://www.hindawi.com/journals/cmmm/2014/276589/cta/
NOPR: Diffusion and transport phenomena in a collisional magnetoplasma with temperature anisotropy
The modified diffusion transport coefficients like the electrical resisitivity (η˔) and thermal conductivity (K) are found to ... The theory of collisional cross field diffusion and transport of a fully ionised singly charged plasma particles is analysed ... remain independent of the thermal anisotropy. However, in the limiting approximation (T╻╻=T⊥), the results agree with the early ... theoretically at the onset of an induced anisotropy (T╻╻≠T⊥) in plasma temperatures where T╻╻ and T⊥ represent the components ...http://nopr.niscair.res.in/handle/123456789/533
Magnetically induced structural anisotropy in binary colloidal gels and its effect on diffusion and pressure driven...
The gel-structure had uniaxial long-range anisotropy caused by alignment of the clay particles in ... Magnetically induced structural anisotropy in binary colloidal gels and its effect on diffusion and pressure driven ... Magnetically induced structural anisotropy in binary colloidal gels and its effect on diffusion and pressure driven ... The gel-structure had uniaxial long-range anisotropy caused by alignment of the clay particles in a strong external magnetic ...http://pubs.rsc.org/en/Content/ArticleLanding/2014/SM/C4SM00315B
Intercentre reproducibility of cardiac apparent diffusion coefficient and fractional anisotropy in healthy volunteers. -...
... but the apparent diffusion coefficient (ADC) and fractional anisotropy (FA) reported in healthy volunteers have been ... The aim of this study was to validate a stimulated-echo diffusion sequence using phantoms, and to assess the intercentre ... known diffusivities were scanned at a single centre using a stimulated echo sequence and a spin-echo Stejskal-Tanner diffusion ... reproducibility of in-vivo diffusion measures using the sequence. METHODS AND RESULTS: A stimulated-echo, cardiac-gated DT-CMR ...https://www.rdm.ox.ac.uk/publications/469103
Diffusion NMR of Confined Systems (RSC Publishing)
... in the research areas and for advanced graduate and postgraduate studies who want information on the versatility of diffusion ... NMR Methods for Studying Microscopic Diffusion Anisotropy. Daniel Topgaard. Buy chapter Pages 226 - 259 ... Probing Exchange and Diffusion in Confined Systems by 129Xe NMR Spectroscopy. Julia Hollenbach, Ben Anger and Jörg Matysik ... Fundamentals of Diffusion Measurements using NMR. Scott A. Willis, Tim Stait-Gardner, Allan M. Torres and William S. Price ...http://pubs.rsc.org/en/content/ebook/978-1-78262-190-4
Home | Center for Gas Separations
Unexpected Diffusion Anisotropy of Carbon Dioxide in the Metal−Organic Framework Zn2(dobpdc). Metal-organic frameworks are ... Diffusion measurements come from a method known as NMR pulsed-field gradient diffusion and compare quite well with computer ... Here, we investigated the diffusion of CO2 within the pores of Zn2(dobpdc) (dobpdc4- = 4,4′-dioxidobiphenyl-3,3′-dicarboxylate ... In addition to observing CO2 diffusion through the channels parallel to the crystallographic c axis we unexpectedly found that ...http://www.cchem.berkeley.edu/co2efrc/
A Patient-Specific Anisotropic Diffusion Model for Brain Tumour Spread | SpringerLink
Kingsley PB (2006) Introduction to diffusion tensor imaging mathematics: part II. anisotropy, diffusion-weighting factors, and ... Okubo A, Levin SA (2001) Diffusion and ecological problems: modern perspectives. Springer, New YorkCrossRefzbMATHGoogle Scholar ... Alexander AL, Lee JE, Lazar M, Field AS (2007) Diffusion tensor imaging of the brain. Neurotherapeutics 4(3):316-329CrossRef ... We apply the anisotropic diffusion model of Painter and Hillen (J Thoer Biol 323:25-39, 2013) to data from 10 patients with ...https://link.springer.com/article/10.1007/s11538-017-0271-8
FA reflects the degree of diffusion anisotropy of water (how diffusion varies along the three axes) within a voxel (three- ... Toward a quantitative assessment of diffusion anisotropy. Magn Reson Med 1996;36:893-906pmid:8946355. ... Diffusion-weighted images were inspected for artifacts using DTIstudio (www.mristudio.org). Diffusion-weighted scans were rated ... Apparent diffusion coefficient on rat brain and nerves intoxicated with methylmercury. Environ Res 1999;80:348-354pmid:10330308 ...http://care.diabetesjournals.org/content/37/2/332
Diffusion tractography reveals pervasive asymmetry of cerebral white matter tracts in the bottlenose dolphin ( Tursiops...
Beaulieu C (2014) The biological basis of diffusion anisotropy. In: Johansen-Berg H, Behrens TEJ (eds) Diffusion MRI: from ... Diffusion tensor images were acquired in the axial plane using a single-shot echo planar imaging (EPI) sequence with diffusion- ... Eddy-corrected DTI acquisitions were then fit to a diffusion model for each voxel using the FMRIB Diffusion Toolbox (FDT; ... However, the symmetries of microstructural diffusion parameters (i.e., FA, M D, A D, and R D) found for all tracts and sub- ...https://link.springer.com/article/10.1007/s00429-017-1525-9
1996) Toward a quantitative assessment of diffusion anisotropy. Magn Reson Med 36:893-906. ... 2007) Diffusion toolkit: a software package for diffusion imaging data processing and tractography. Proc Int Soc Mag Reson Med ... Diffusion-weighted echo-planar magnetic resonance images were acquired by applying diffusion sensitizing gradients along 30 non ... Using diffusion tensor imaging, we show that psychopathy is associated with reduced structural integrity in the right uncinate ...http://www.jneurosci.org/content/31/48/17348
Frontiers | Lower Digit Symbol Substitution Score in the Oldest Old is Related to Magnetization Transfer and Diffusion Tensor...
Methods: Imaging indices of micro-structure (diffusion tensor imaging, DTI, and magnetization transfer imaging, MTI), macro- ... Methods: Imaging indices of micro-structure (diffusion tensor imaging, DTI, and magnetization transfer imaging, MTI), macro- ... Pierpaoli, C., and Basser, P. J. (1996). Toward a quantitative assessment of diffusion anisotropy. Magn. Reson. Med. 36, 893- ... Bhagat, Y. A., and Beaulieu, C. (2004). Diffusion anisotropy in subcortical white matter and cortical gray matter: changes with ...https://www.frontiersin.org/articles/10.3389/fnagi.2011.00011/full
Information Processing in Medical Imaging | SpringerLink
Apparent Diffusion Coefficient Approximation and Diffusion Anisotropy Characterization in DWI Y. Chen, W. Guo, Q. Zeng, X. Yan ... Approximating Anatomical Brain Connectivity with Diffusion Tensor MRI Using Kernel-Based Diffusion Simulations ... Diffusion Tensor Imaging and Functional Magnetic Resonance. * Fiber Tracking in q-Ball Fields Using Regularized Particle ... Representing Diffusion MRI in 5D for Segmentation of White Matter Tracts with a Level Set Method ...https://link.springer.com/book/10.1007%2Fb137723
Radiation damage - Wikipedia
Growth in irradiated materials is caused by Diffusion Anisotropy Difference (DAD). This phenomenon frequently occurs in ... Radiation can also lead to segregation and diffusion of atoms within materials, leading to phase segregation and voids as well ... They also act to help prevent diffusion, which restricts the ability of the material to undergo radiation induced segregation. ... Allen, Todd; Was, Gary (2007). "RADIATION-ENHANCED DIFFUSION AND RADIATION-INDUCED SEGREGATION". In Sickafus, Kurt; Kotomin, ...https://en.wikipedia.org/wiki/Radiation_damage
Title of Project: Biophysical Modeling of Diffusion Anisotropy in Nerve Tissue. Publications. Collaborating PI: Simon Warfield ... Title of Project: Diffusion Tensor Imaging. Publications. Collaborating PI: Janet Lainhart, M.D.; Mark Leppert, Ph.D.. ... Title of Project: Diffusion Tensor Image Analysis in the Study of Age-Related Neurodegeneration. Collaborating PI: Gregory A. ... Title of Project: Diffusion Tensor Analysis, Tracking, and Visualization Publications. Collaborating PI: Raimond Winslow, Ph.D. ...http://www.sci.utah.edu/software/38-softcibc/41-imagevis3d
Prediction of Functional Outcome in Acute Cerebral Hemorrhage Using Diffusion Tensor Imaging at 3T: A Prospective Study |...
Diffusion anisotropy mirrors the fiber integrity and the degree of the fiber organization in the white matter tract.11,23 ... Anisotropy in high angular resolution diffusion-weighted MRI. Magn Reson Med 2001; 45: 935- 39. ... Serial study of apparent diffusion coefficient and anisotropy in patients with acute stroke. Stroke 1999; 30: 2382- 90. ... An evaluation of the time dependence of the anisotropy of the water diffusion tensor in acute human ischemia. Magn Reson ...http://www.ajnr.org/content/30/8/1561
Toward a quantitative assessment of diffusion anisotropy. Magn Reson Med 1996;36:893-906. ... 5 The degree of diffusion is characterized by 3 eigenvectors representing the diffusion in each orthogonal direction. Diffusion ... Toward Precision and Reproducibility of Diffusion Tensor Imaging: A Multicenter Diffusion Phantom and Traveling Volunteer Study ... Toward Precision and Reproducibility of Diffusion Tensor Imaging: A Multicenter Diffusion Phantom and Traveling Volunteer Study ...http://www.ajnr.org/content/35/1/23
Toward a quantitative assessment of diffusion anisotropy. Magn Reson Med 1996; 36: 893-906. ... Apparent diffusion coefficients (ADC) and mean ADC values (,ADC,), describing average diffusion in three orthogonal directions ... Transaxial, T1-weighted, spin-echo images and diffusion-weighted MRI data were collected 16 to 48 h later ( 32). ...http://cancerres.aacrjournals.org/content/68/5/1520