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The prevalence and distribution of white-matter changes on different MRI pulse sequences in a post-stroke cohort

  • DIAGNOSTIC NEURORADIOLOGY
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Abstract

No uniform criteria currently exist for rating white-matter (WM) high-signal foci on MRI. Ratings are based on descriptive terms, different pulse sequences and different WM areas. Reports on the prevalence and clinical correlates of high-signal foci have been contradictory. We wanted to examine the contribution of the pulse sequence and WM area on rating WM changes. We analysed WM changes separately on T2-, protondensity (PD)- and T1-weighted images in periventricular, subcortical, watershed area and deep WM. The difference between T2- and PD-weighted images was significant for frontal caps, counting small foci or analysing subcortical changes. T1-weighted images showed significantly less change, but the number of foci detected was greater than previously thought. The prevalence of WM high-signal foci was greatest in the watershed zone and smallest in the subcortical area. There was a significant correlation between foci in different areas.

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Authors and Affiliations

  1. Department of Radiology, University of Helsinki, Haartmaninkatu 4, FIN-00290 Helsinki, Finland Tel.: + 358-9-4717 2479, Fax: + 358-9-4717 44 04, e-mail: riitta.mantyla@helsinki.fi, , , , , , FI

    R. Mäntylä, H. J. Aronen, O. Salonen, M. Korpelainen, T. Peltonen & C.-G. Standertskjöld-Nordenstam

  2. Department of Clinical Neurosciences, Memory Research Unit, Helsinki University Central Hospital, Helsinki, Finland, , , , , , FI

    T. Erkinjuntti

Authors
  1. R. Mäntylä
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  2. H. J. Aronen
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  3. O. Salonen
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  4. M. Korpelainen
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  5. T. Peltonen
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  6. C.-G. Standertskjöld-Nordenstam
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  7. T. Erkinjuntti
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Additional information

Received: 10 December 1998 Accepted: 15 January 1999

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Mäntylä, R., Aronen, H., Salonen, O. et al. The prevalence and distribution of white-matter changes on different MRI pulse sequences in a post-stroke cohort. Neuroradiology 41, 657–665 (1999). https://doi.org/10.1007/s002340050820

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  • DOI: https://doi.org/10.1007/s002340050820

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