Journal
CEPHALALGIA
Volume 42, Issue 8, Pages 730-738Publisher
SAGE PUBLICATIONS LTD
DOI: 10.1177/03331024221076484
Keywords
Cerebral veins; migraine aura; MRI
Categories
Funding
- Fulbright Scholarship
- Harvard University committee on General Scholarship
- Philippe Foundation research grant
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This study evaluated the frequency, distribution, and clinical associations of the dilated appearance of cerebral cortical veins, termed cortical veins sign, on T2*-weighted gradient recalled-echo (T2*-GRE) in the acute setting of migraine with aura attack in adult patients. The results showed that the cortical veins sign was commonly observed in patients with migraine with aura and could be detected reliably. This imaging marker may assist clinicians in identifying the diagnosis of migraine with aura.
Objective To evaluate the frequency, distribution, and clinical associations of the dilated appearance of cerebral cortical veins, termed cortical veins sign on T2*-weighted gradient recalled-echo (T2*-GRE) in the acute setting of migraine with aura attack in adult patients. Methods We conducted a retrospective analysis of 60 consecutive patients admitted for acute neurological symptoms with a final diagnosis of migraine with aura (42%) or probable migraine with aura (58%) who underwent emergency brain magnetic resonance imaging and 60 non-migrainous control adults. The cortical veins sign was defined as a marked hypo-intensity and/or an apparent increased diameter of at least one cortical vein. We examined the prevalence, the spatial distribution, and the associations of cortical veins sign with clinical characteristics of migraine with aura. Results We detected the cortical veins sign in 25 patients (42%) with migraine with aura, compared to none in the control group (p < 0.0001). The spatial distribution of cortical veins sign was characterised by the predominantly bilateral and posterior location. Presence of cortical veins sign was associated with increased severity of aura (p = 0.05), and shorter delay to MRI (p = 0.02). Conclusion In the setting of acute neurological symptoms, the presence of cortical veins sign is frequent in patients with migraine with aura and can be detected with good reliability. This imaging marker may help clinicians identify underlying migraine with aura.
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