Gradation of Prolonged Venous Transit on Perfusion Imaging Highlights the Association of Deep Venous Drainage Impairment with Unfavorable Functional Outcome in Successfully Reperfused Anterior Circulation Large-Vessel-Occlusion Stroke

Key Points

• This research examines the relationship between venous drainage impairment and functional outcomes in patients with anterior circulation large-vessel-occlusion stroke after reperfusion.
• Utilized perfusion imaging to assess prolonged venous transit gradation.
• Compared the impacts of superficial versus deep venous drainage dysfunction.
• Analyzed functional outcomes in successfully reperfused stroke patients.
• Deep venous drainage impairment strongly correlated with worse functional outcomes.
• Prolonged venous transit was a significant prognostic biomarker.
• Superficial venous drainage impairment had a lesser impact compared to deep venous impairment.