Showing 1 - 20 results of 37 for search '"tensor"', query time: 0.08s Refine Results
  1. 1

    Connectivity of the human pedunculopontine nucleus region and diffusion tensor imaging in surgical targeting. by Muthusamy, K, Aravamuthan, B, Kringelbach, M, Jenkinson, N, Voets, N, Johansen-Berg, H, Stein, J, Aziz, T

    Published 2007
    “…CONCLUSIONS: These findings suggest that connections of the PPN region with the primary motor cortex, basal ganglia, thalamus, cerebellum, and spinal cord may play important roles in the regulation of movement by the PPN region. Diffusion tensor imaging tractography of the PPN region may be used preoperatively to optimize placement of stimulation electrodes and postoperatively it may also be useful to reassess electrode positions.…”
    Journal article
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    Accelerated changes in white matter microstructure during aging: a longitudinal diffusion tensor imaging study. by Sexton, C, Walhovd, K, Storsve, AB, Tamnes, C, Westlye, LT, Johansen-Berg, H, Fjell, A

    Published 2014
    “…Cross-sectional diffusion tensor imaging (DTI) studies indicate that, after a period of relative stability during adulthood, there is an accelerated decline in anisotropy and increase in diffusivity values during senescence; and, spatially, results have been discussed within the context of several anatomical frameworks. …”
    Journal article
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    Differences in integrity of white matter and changes with training in spelling impaired children: a diffusion tensor imaging study. by Gebauer, D, Fink, A, Filippini, N, Johansen-Berg, H, Reishofer, G, Koschutnig, K, Kargl, R, Purgstaller, C, Fazekas, F, Enzinger, C

    Published 2012
    “…While the functional correlates of spelling impairment have been rarely investigated, to our knowledge no study exists regarding the structural characteristics of spelling impairment and potential changes with interventions. Using diffusion tensor imaging at 3.0 T, we here therefore sought to investigate (a) differences between children with poor spelling abilities (training group and waiting group) and controls, and (b) the effects of a morpheme-based spelling intervention in children with poor spelling abilities on DTI parameters. …”
    Journal article
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    White matter abnormalities in methcathinone abusers with an extrapyramidal syndrome. by Stepens, A, Stagg, C, Platkajis, A, Boudrias, M, Johansen-Berg, H, Donaghy, M

    Published 2010
    “…We performed diffusion tensor imaging in 10 patients and 15 age-matched controls to assess white matter structure across the whole brain. …”
    Journal article
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    White matter abnormalities in methcathinone abusers with an extrapyramidal syndrome by Stepens, A, Stagg, C, Platkajis, A, Boudrias, M, Johansen-Berg, H, Donaghy, M

    Published 2010
    “…We performed diffusion tensor imaging in 10 patients and 15 age-matched controls to assess white matter structure across the whole brain. …”
    Journal article
  9. 9

    Associations between self-reported sleep quality and white matter in community-dwelling older adults: A prospective cohort study by Sexton, C, Zsoldos, E, Filippini, N, Griffanti, L, Winkler, A, Mahmood, A, Allan, C, Topiwala, A, Kyle, S, Spiegelhalder, K, Singh-Manoux, A, Kivimaki, M, Mackay, C, Johansen-Berg, H, Ebmeier, K

    Published 2017
    “…Poor sleep quality at the time of the diffusion tensor imaging scan was associated with reduced global fractional anisotropy and increased global axial diffusivity and radial diffusivity values, with small effect sizes. …”
    Journal article
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    Individual differences in slow wave sleep architecture relate to variation in white matter microstructure across adulthood by Gudberg, C, Stevelink, R, Douaud, G, Wulff, K, Lazari, A, Fleming, MK, Johansen-Berg, H

    Published 2022
    “…White matter integrity was assessed using tract-based spatial statistics (TBSS) on tensor-based metrics such as Fractional Anisotropy (FA) and Mean Diffusivity (MD). …”
    Journal article
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    A consistent relationship between local white matter architecture and functional specialisation in medial frontal cortex. by Behrens, T, Jenkinson, M, Robson, M, Smith, S, Johansen-Berg, H

    Published 2006
    “…Here, we explore this relationship in the supplementary motor area (SMA) and pre-SMA in the medial frontal cortex of the human brain. Using diffusion tensor, conventional and functional MR imaging, we find that the location of the functional boundary between SMA and preSMA is more consistent with respect to specific features of the local white matter as it approaches neocortex than with respect to the local gyral and sulcal anatomy in the region.…”
    Journal article
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    Characterization and propagation of uncertainty in diffusion-weighted MR imaging. by Behrens, T, Woolrich, M, Jenkinson, M, Johansen-Berg, H, Nunes, R, Clare, S, Matthews, P, Brady, J, Smith, S

    Published 2003
    “…This technique is applied to the estimation of parameters in the diffusion tensor model, and also to a simple partial volume model of diffusion. …”
    Journal article
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    Imaging white matter diffusion changes with development and recovery from brain injury. by Bosnell, R, Giorgio, A, Johansen-Berg, H

    Published 2008
    “… PURPOSE: This study reviews the application of diffusion tensor imaging (DTI) to the study of developmental and pathological changes in brain white matter. …”
    Journal article
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    Two-dimensional population map of cortical connections in the human internal capsule. by Zarei, M, Johansen-Berg, H, Jenkinson, M, Ciccarelli, O, Thompson, A, Matthews, P

    Published 2007
    “…MATERIALS AND METHODS: Diffusion tensor imaging (DTI) was carried out on 11 healthy volunteers. …”
    Journal article
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    Diffusion MRI at 25: Exploring brain tissue structure and function by Le Bihan, D, Johansen-Berg, H

    Published 2012
    “…It is also rapidly becoming a standard for white matter disorders, as diffusion tensor imaging (DTI) can reveal abnormalities in white matter fiber structure and provide outstanding maps of brain connectivity. …”
    Journal article
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    Non-invasive mapping of connections between human thalamus and cortex using diffusion imaging. by Behrens, T, Johansen-Berg, H, Woolrich, M, Smith, S, Wheeler-Kingshott, C, Boulby, P, Barker, G, Sillery, E, Sheehan, K, Ciccarelli, O, Thompson, A, Brady, J, Matthews, P

    Published 2003
    “…Evidence concerning anatomical connectivities in the human brain is sparse and based largely on limited post-mortem observations. Diffusion tensor imaging has previously been used to define large white-matter tracts in the living human brain, but this technique has had limited success in tracing pathways into gray matter. …”
    Journal article
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    Diffusion MRI at 25: exploring brain tissue structure and function. by Le Bihan, D, Johansen-Berg, H

    Published 2012
    “…It is also rapidly becoming a standard for white matter disorders, as diffusion tensor imaging (DTI) can reveal abnormalities in white matter fiber structure and provide outstanding maps of brain connectivity. …”
    Journal article
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    fMRI neurofeedback in the motor system elicits bidirectional changes in activity and in white matter structure in the adult human brain by Sampaio-Baptista, C, Johansen-Berg, H, Neyedli, HF, Sanders, Z-B, Diosi, K, Havard, D, Huang, Y, Andersson, JLR, Lühr, M, Goebel, R

    Published 2021
    “…We employ fMRI neurofeedback to endogenously and directionally modulate activity in the sensorimotor cortices. Diffusion tensor imaging is acquired before and after two separate conditions, involving regulating sensorimotor activity either up or down using real or sham neurofeedback (n = 20 participants × 4 scans). …”
    Journal article
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    Diffusion imaging of whole, post-mortem human brains on a clinical MRI scanner. by Miller, K, Stagg, C, Douaud, G, Jbabdi, S, Smith, S, Behrens, T, Jenkinson, M, Chance, SA, Esiri, M, Voets, N, Jenkinson, N, Aziz, T, Turner, M, Johansen-Berg, H, McNab, J

    Published 2011
    “…Region-of-interest analysis of diffusion tensor parameters indicate that these properties are altered compared to in vivo (reduced diffusivity and anisotropy), with significant dependence on post mortem interval (time from death to fixation). …”
    Journal article
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    Age-related changes in grey and white matter structure throughout adulthood. by Giorgio, A, Santelli, L, Tomassini, V, Bosnell, R, Smith, S, De Stefano, N, Johansen-Berg, H

    Published 2010
    “…Multimodal imaging measures included voxel-based morphometry (VBM)-style analysis of GM and WM volume and diffusion tensor imaging (DTI) metrics of WM microstructure. …”
    Journal article