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A Primer on Medium Vessel Occlusion Stroke: From Detection to Treatment

Gunjan Jindal1, Antonio Ciacciarelli2, Umberto Pensato3,4

  • 1Department of Radiology, University of Calgary Cumming School of Medicine, Alberta, Canada.

Seminars in Interventional Radiology
|April 2, 2026
PubMed

Insights

Medium vessel occlusion (MeVO) stroke is a distinct entity requiring prompt diagnosis. This review covers MeVO definition, imaging, and treatment evidence for better patient outcomes.

Area of Science:

  • Neurology
  • Radiology
  • Vascular Medicine

Background:

  • Medium vessel occlusion (MeVO) is an increasingly recognized cause of acute ischemic stroke.
  • Accurate diagnosis of MeVO is critical for timely and effective patient management.
  • Radiologists play a pivotal role in identifying MeVO on neuroimaging.

Purpose of the Study:

  • To provide a comprehensive overview of MeVO stroke.
  • To detail the anatomical, clinical, and neuroimaging features of MeVO.
  • To critically evaluate current treatment strategies and future research directions for MeVO.

Main Methods:

  • Literature review of anatomical definitions.
  • Analysis of clinical presentations and neuroimaging characteristics.
  • Critical appraisal of evidence for existing and emerging treatments.

Main Results:

  • MeVO stroke presents unique diagnostic challenges and therapeutic considerations.
  • Neuroimaging plays a crucial role in MeVO identification and characterization.
  • Evidence for specific treatments in MeVO is evolving.

Conclusions:

  • MeVO stroke requires specific diagnostic and management approaches.
  • Further research is needed to optimize imaging and treatment protocols for MeVO.
  • Enhanced understanding of MeVO will improve patient prognostication and secondary prevention.
Keywords:
MeVOischemiaischemic stroke

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