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High-Resolution Intracranial Vessel Wall MRI Findings Among Different Middle Cerebral Artery Territory Infarction Types

Authors :
Seung-Koo Lee
So Yeon Won
Young Dae Kim
Hyun Seok Choi
HYO SUK NAM
Ji Hoe Heo
Jihoon Cha
Source :
Korean journal of radiology. 23(3)
Publication Year :
2021

Abstract

Intracranial atherosclerotic stroke occurs through various mechanisms, mainly by artery-to-artery embolism (AA) or branch occlusive disease (BOD). This study evaluated the spatial relationship between middle cerebral artery (MCA) plaques and perforating arteries among different MCA territory infarction types using vessel wall magnetic resonance imaging (VW-MRI).We retrospectively enrolled patients with acute MCA infarction who underwent VW-MRI. Thirty-four patients were divided into three groups according to infarction pattern: 1) BOD, 2) both BOD and AA (BOD-AA), and 3) AA. To determine the factors related to BOD, the BOD and BOD-AA groups were combined into one group (with striatocapsular infarction [BOD+]) and compared with the AA group. To determine the factors related to AA, the BOD-AA and AA groups were combined into another group (with cortical infarction [AA+]) and compared with the BOD group. Plaque morphology and the spatial relationship between the perforating artery orifice and plaque were evaluated both quantitatively and qualitatively.The plaque margin in the BOD+ group was closer to the perforating artery orifice than that in the AA group (The spatial relationship between the perforating artery orifice and plaque varied among different types of MCA territory infarctions. In patients with BOD, the plaque margin was closer and blocked the perforating artery orifice, and stenosis degree and enhancement were less than those in patients with AA.

Details

ISSN :
20058330
Volume :
23
Issue :
3
Database :
OpenAIRE
Journal :
Korean journal of radiology
Accession number :
edsair.doi.dedup.....f44b8f60823df331cde09327974245e0