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Träfflista för sökning "WFRF:(Ljungberg Maria) srt2:(2000-2004)"

Sökning: WFRF:(Ljungberg Maria) > (2000-2004)

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  • Szczepanska, Anna Maria, 1974, et al. (författare)
  • The Public Penguin - Open Sourcing Public Sector
  • 2004
  • Ingår i: Proceedings of IRIS 27: 27th Information Systems Research Seminar in Scandinavia, August 14-17, 2004, Falkenberg, Sweden..
  • Konferensbidrag (refereegranskat)
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  • Vikhoff-Baaz, Barbro, et al. (författare)
  • Lateralisation with magnetic resonance spectroscopic imaging in temporal lobe epilepsy: an evaluation of visual and region-of-interest analysis of metabolite concentration images.
  • 2001
  • Ingår i: Neuroradiology. - 0028-3940. ; 43:9, s. 721-7
  • Tidskriftsartikel (refereegranskat)abstract
    • We carried out spectroscopic imaging (MRSI) on nine consecutive patients with temporal lobe epilepsy being assessed for epilepsy surgery, and nine neurologically healthy, age-matched volunteers. A volume of interest (VOI) was angled along the temporal horns on axial and sagittal images, and symmetrically over the temporal lobes on coronal images. Images showing the concentrations of N-acetylaspartate (NAA) and of choline-containing compounds plus creatine and phosphocreatine (Cho + Cr) were used for lateralisation. We compared assessment by visual inspection and by signal analysis from regions of interest (ROI) in different positions, where side-to-side differences in NAA/(Cho + Cr) ratio were used for lateralisation. The NAA/ (Cho + Cr) ratio from the different ROI was also compared with that in the brain stem to assess if the latter could be used as an internal reference, e. g., for identification of bilateral changes. The metabolite concentration images were found useful for lateralisation of temporal lobe abnormalities related to epilepsy. Visual analysis can, with high accuracy, be used routinely. ROI analysis is useful for quantifying changes, giving more quantitative information about spatial distribution and the degree of signal loss. There was a large variation in NAA/ (Cho + Cr) values in both patients and volunteers. The brain stem may be used as a reference for identification of bilateral changes.
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  • Resultat 1-4 av 4

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