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  • Savolainen, M. (author)

Moyamoya angiopathy: radiological follow-up findings in Finnish patients

  • Article/chapterEnglish2020

Publisher, publication year, extent ...

  • 2020-04-22
  • Springer Science and Business Media LLC,2020

Numbers

  • LIBRIS-ID:oai:gup.ub.gu.se/293526
  • https://gup.ub.gu.se/publication/293526URI
  • https://doi.org/10.1007/s00415-020-09837-wDOI

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  • Language:English

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  • Subject category:ref swepub-contenttype
  • Subject category:art swepub-publicationtype

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  • Background and purpose Moyamoya angiopathy (MMA) is a chronic progressive disorder, but imaging changes observed over time are not yet characterized in European populations. We analyzed the progression of MMA with magnetic resonance imaging and angiography (MRI and MRA) in our Finnish MMA registry. Stage classification based on MRA findings was used to evaluate the progress of the disease. Methods 32 patients with MMA were evaluated with MRI and MRA and compared to previous imaging. The follow-up imaging was done 103 (range 6-380) months after the MMA diagnosis, and 64 (range 6-270) months after the previous imaging. We graded the disease stage according to the previously described MRA grading scale. Results No acute lesions, including silent ischemic strokes were found in the follow-up image compared to latest available previous image. One patient had an asymptomatic intracerebral hemorrhage since the last imaging. Ivy sign was observed in 22% of the patients in the follow-up image. Six percent (n = 2) had microhemorrhages and 9% (n = 3) white matter lesions in the follow-up imaging. The MRA grade was evaluated from the follow-up images and it was 3 and 2.5 points (right and left, respectively). Fifty-six percent (n = 18) had old ischemic lesions in the follow-up image. Majority (71%) of the old ischemic lesions were large anterior circulation infarcts. Conclusions A slow progression of MMA-related changes on MRI/MRA was found, being in line with our previous reports suggesting a rather benign course of the disease in the Finnish population.

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  • Pekkola, J. (author)
  • Mustanoja, S. (author)
  • Tyni, T. (author)
  • Hernesniemi, J. (author)
  • Kivipelto, L. (author)
  • Tatlisumak, TurgutGothenburg University,Göteborgs universitet,Institutionen för neurovetenskap och fysiologi,Institute of Neuroscience and Physiology(Swepub:gu)xtatlt (author)
  • Göteborgs universitetInstitutionen för neurovetenskap och fysiologi (creator_code:org_t)

Related titles

  • In:Journal of Neurology: Springer Science and Business Media LLC267, s. 2301-23060340-53541432-1459

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Savolainen, M.
Pekkola, J.
Mustanoja, S.
Tyni, T.
Hernesniemi, J.
Kivipelto, L.
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Tatlisumak, Turg ...
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MEDICAL AND HEALTH SCIENCES
MEDICAL AND HEAL ...
and Basic Medicine
and Neurosciences
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Journal of Neuro ...
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University of Gothenburg

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