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Related Experiment Video

Updated: Jun 3, 2026

Brain Infarct Segmentation and Registration on MRI or CT for Lesion-symptom Mapping
10:25

Brain Infarct Segmentation and Registration on MRI or CT for Lesion-symptom Mapping

Published on: September 25, 2019

Migrainous infarction: a Nordic multicenter study.

K Laurell1, V Artto, L Bendtsen

  • 1Department of Neuroscience, Neurology, Uppsala University Hospital, Uppsala, Sweden. mail:Katarina.Laurell@akademiska.se

European Journal of Neurology
|March 19, 2011
PubMed
Summary
This summary is machine-generated.

Migrainous infarction (MI), a rare ischemic stroke during migraine with aura, predominantly affects posterior circulation. Most patients recover well, with few traditional stroke risk factors observed.

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Assessing Cortical Cerebral Microinfarcts on High Resolution MR Images
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Brain Infarct Segmentation and Registration on MRI or CT for Lesion-symptom Mapping
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Published on: September 25, 2019

Assessing Cortical Cerebral Microinfarcts on High Resolution MR Images
08:39

Assessing Cortical Cerebral Microinfarcts on High Resolution MR Images

Published on: November 20, 2015

Area of Science:

  • Neurology
  • Stroke Medicine
  • Headache Disorders

Background:

  • Migrainous infarction (MI) is a rare ischemic stroke associated with migraine with aura.
  • Limited data exists due to small previous case series (<10 patients).

Purpose of the Study:

  • To characterize the clinical features and outcomes of MI in a larger patient cohort.
  • To investigate the role of traditional stroke risk factors and migraine-specific treatments.

Main Methods:

  • Retrospective analysis of 33 MI patients meeting ICHD-II criteria.
  • Data collected from seven Nordic headache clinics.
  • Evaluation of demographics, risk factors, migraine medication, stroke location, symptoms, and outcomes.

Main Results:

  • The cohort comprised 61% women, with a median stroke age of 39 years.
  • Traditional stroke risk factors were infrequent.
  • Posterior circulation strokes occurred in 82% of cases, with cerebellar involvement in 21%.
  • 36% of patients used ergotamines or triptans during the acute phase.

Conclusions:

  • Low prevalence of traditional risk factors suggests migraine-specific mechanisms in MI.
  • Predominant posterior circulation involvement supports these theories.
  • Outcomes were generally favorable, with most patients experiencing full recovery or minor residual symptoms.