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Erschienen in:
28.05.2024 | Original Article
Correlation between asymmetrical vein sign of SWI and long-term clinical outcomes in patients with middle cerebral artery ischemic stroke
Erschienen in: Japanese Journal of Radiology | Ausgabe 10/2024
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Objective
To evaluate the association of asymmetrical cortical vein sign (ACVS) and asymmetrical medullary vein sign (AMVS) on susceptibility-weighted imaging (SWI) with 90-day poor outcomes in patients with unilateral middle cerebral artery acute ischemic stroke (AIS) after conservative drug treatment.
Methods
Clinical data for the participants included age, sex, smoking, alcohol, hypertension, diabetes, hyperlipidemia, coronary heart disease, NHISS-admission, and NHISS-discharge scores. Participants underwent magnetic resonance imaging (MRI) within 12 h of hospital admission, including conventional scan sequences and a SWI sequence. Poor prognosis was defined as a modified Rankin scale (mRS) ≥ 3 at 90 days.
Results
A total of 108 patients were included from January 2021 to March 2022. Twenty-seven (25%) patients had a poor outcome at 90 days. Univariate analysis indicated that diabetes, NHISS-admission, NHISS-discharge, DWI-ASPECTS, SWI-ASPECTS, FLAIR-ASPECTS, and AMVS + were associated with 90-day poor outcome. Multivariate regression analysis showed that AMVS + was associated with 90-day poor outcome from the three models (OR = 3.57, P = 0.006; OR = 3.74, P = 0.005; OR = 5.14, P = 0.0057). However, no significant association was found between ACVS + and 90-day poor outcome.
Conclusions
AMVS might be a helpful neuroimaging predictor for poor outcome at 90 days compared to ACVS in drug-conserving treatment of patients with unilateral middle cerebral artery ischemic stroke.
