The Contrast Enhancement of Intracranial Arterial Wall on High-resolution MRI and Its Clinical Relevance in Patients with Moyamoya Vasculopathy

The purpose of this study is to investigate the characteristics of intracranial vessel wall enhancement and its relationship with ischemic infarction in patients with Moyamoya vasculopathy (MMV). Forty-seven patients with MMV confirmed by angiography were enrolled in this study. The vessel wall enha...

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Published inScientific reports Vol. 7; no. 1; p. 44264
Main Authors Wang, Maoxue, Yang, Yongbo, Zhou, Fei, Li, Ming, Liu, Renyuan, Guan, Maobin, Li, Rui, He, Le, Xu, Yun, Zhang, Bing, Zhu, Bin, Zhao, Xihai
Format Journal Article
LanguageEnglish
Published England Nature Publishing Group 09.03.2017
Subjects
Aneurysms
Angiography
Carotid artery
Cerebral infarction
Ischemia
Magnetic resonance imaging
Risk factors
Stents
Stroke
Vascular diseases
Veins & arteries
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Summary:The purpose of this study is to investigate the characteristics of intracranial vessel wall enhancement and its relationship with ischemic infarction in patients with Moyamoya vasculopathy (MMV). Forty-seven patients with MMV confirmed by angiography were enrolled in this study. The vessel wall enhancement of the distal internal carotid artery, anterior cerebral artery and middle cerebral artery was classified into eccentric and concentric patterns, as well as divided into three grades: grade 0, grade 1 and grade 2. The relationship between ischemic infarction and vessel wall enhancement was also determined. Fifty-six enhanced lesions were found in patients with (n = 25) and without acute infarction (n = 22). The incidence of lesions with grade 2 enhancement in patients with acute infarction was greater than that in those without acute infarction (p = 0.011). In addition, grade 2 enhancement of the intracranial vessel wall was significantly associated with acute ischemic infarction (Odds ratio, 26.7; 95% confidence interval: 2.8-258.2; p = 0.005). Higher-grade enhancement of the intracranial vessel wall is independently associated with acute ischemic infarction in patients with MMV. The characteristics of intracranial vessel wall enhancement may serve as a marker of its stability and provide important insight into ischemic stroke risk factors.
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These authors contributed equally to this work.
ISSN:2045-2322
2045-2322
DOI:10.1038/srep44264