Vascular Morphology has No Direct Relationship with Atherosclerotic Plaque Burden in Patients with Symptomatic Middle Cerebral Artery Stenosis

Author(s): Lu Liu, Chengju Huo, Hao Sun, Hua Yang, Rui Zhang, Lexin Wang*, Zhangyong Xia*

Journal Name: Current Neurovascular Research

Volume 16 , Issue 3 , 2019

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Background: The vascular morphology and the characteristics of atherosclerotic plaques in the middle cerebral artery (MCA) have not been fully studied with high-resolution magnetic resonance imaging (HR-MRI).

Objective: HR-MRI was applied to investigate vascular morphology and atherosclerotic plaque in patients with symptomatic MCA stenosis.

Materials and Methods: A total of 343 patients with symptomatic MCA stenosis were enrolled in this study. All the patients were examined by HR-MRI to analyze the morphology of MCA and the M1 segment (MCA-M1), the characteristics and the location of the plaques.

Results: The proportion of L-shaped MCA-M1 decreased, while the proportion of S-shaped MCAM1 increased with age. The anterior plaques were the most common in all the patients. The superior plaques were relatively common in patients with L-shaped and U-shaped MCA-M1, while the inferior plaques were relatively common in patients with inverted U-shaped and S-shaped MCAM1. Among all the plaques, the majority were isointense or heterogeneous. The MCA-M1 morphology had no direct relationship with the common risk factors of atherosclerosis and the clinical outcomes of the patients after 12 months of follow up.

Conclusion: The morphology of MCA-M1 is not directly related to the plaque burden or the degree of stenosis in patients with symptomatic MCA stenosis. The morphology of MCA-M1 is not associated with the risk factors of atherosclerosis, or the clinical outcomes of the patients.

Keywords: High-resolution magnetic resonance imaging, middle cerebral artery, vascular morphology, atherosclerotic plaque, stroke, cerebral artery stenosis.

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Article Details

Year: 2019
Published on: 16 September, 2019
Page: [224 - 231]
Pages: 8
DOI: 10.2174/1567202616666190618122746
Price: $65

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