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Sökning: L773:1432 1920

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  • Salonen, O., et al. (författare)
  • MRI of the brain in neurologically healthy middle-aged and elderly individuals
  • 1997
  • Ingår i: Neuroradiology. - : Springer Science and Business Media LLC. - 0028-3940 .- 1432-1920. ; 39:8, s. 537-45
  • Tidskriftsartikel (refereegranskat)abstract
    • Our purpose was to document the MRI appearances of the brain in healthy middle-aged to elderly subjects. T2- and proton density-weighted axial slices were obtained in 61 volunteers, 30-86 years of age. After visual inspection, signal intensities of brain structures were measured on T2-weighted images. Age-related changes became increasingly apparent after age 50. The main findings were that signal intensity of the white matter increased concomitantly with widening of the cerebrospinal fluid spaces; that basal ganglia remained stable; that high-signal foci in white matter increased in number and size after the age of 50 years; that periventricular high-signal foci were constant after the age of 65 years. Our visual impression of a decrease in signal intensity of the central grey matter with age seems to be mistaken. Pathological processes should be suspected if periventricular foci are found in middle-aged or young subjects.
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105.
  • Scheffler, Max, et al. (författare)
  • Identification of hippocampal cortical microinfarcts on postmortem 3-T magnetic resonance imaging
  • 2021
  • Ingår i: Neuroradiology. - : Springer Nature. - 0028-3940 .- 1432-1920. ; 63:9, s. 1569-1573
  • Tidskriftsartikel (refereegranskat)abstract
    • Cortical microinfarcts (CMI) are increasingly recognized in the neurological community as a biomarker related to cognitive impairment and dementia. If their radiological depiction has been largely described in experimental settings using ultra-high-field magnetic resonance imaging (MRI), less is known about their visibility on routinely used 3-T MRI. In this radiologic-pathologic correlation study, using 3-T post-mortem MRI, we searched for hippocampal CMI, in a double-blinded fashion, and found that only 4/36, or 11%, were clearly demonstrated on both radiological and histopathological exams.
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