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• Clinical Article •
The diagnostic study of T1-weighted 3D volumetric isotropic TSE acquisition in evaluating characteristics of plaques of middle cerebral artery in acute ischemic stroke of basal ganglia
ZHAO Qing-long  LIU Tian-yi  YANG Shi-qi  LI Lu-lu  LIU Peng-fei  LI Guozhong  WANG Wei  CUI Ying-zhe 

DOI:10.12015/issn.1674-8034.2017.01.005.


[Abstract] Objective: To evaluate the characteristics of plaques of middle cerebral artery (MCA) in acute ischemic stroke of basal ganglia using T1-weighted 3D Volumetric Isotropic TSE Acquisition (T1W 3D-VISTA) and its clinical relevance.Materials and Methods: Patients with acute ischemic stroke of middle cerebral artery territory, which were diagnosed by DWI, underwent both MRA and T1W 3D-VISTA examinations. Patients were divided into two groups according to the distribution of infarction, one contained basal ganglia (BG, basal ganglia/ basal ganglia as well as the area outside of it) and the other did not contain basal ganglia (N-BG). Distribution of blood vessel walls and the contrast ratio (CR) of signal intensity of the plaques to that of the corpus callosum were compared between BG and N-BG and their clinical characteristics were evaluated.Results: Among 52 patients with cerebral infarction and ipsilateral plaques in M1 (BG 30 and N-BG 22), a total of 1560 image slices were studied. Overall, of the 251 slices with identified plaques, the plaques located at superior wall of BG (37.74%) accounted for a higher proportion as compared with N-BG (10.26%)(P=0.004), and the plaques located at inferior wall (26.42%) and ventral wall (13.21%) of BG accounted for a lower proportion as compared with the plaques located at inferior wall (48.72%) and ventral wall (33.33%) of N-BG (P=0.047 and 0.039,respectively). The average signal intensity (CRs) of plaques of BG was lower as compared with plaques of N-BG (mean, 0.84 and 0.92, respectively, P=0.001). The clinical characteristics (including age, gender, hypertension, diabetes, dyslipidemia, smoking, drinking, BMI, NIHSS score within 24 hours after admission, family history of stroke) had no significant difference between BG and N-BG (P>0.05).Conclusion: T1W-3D-VISTA can detect the distribution of arterial atherosclerotic plaques and the relative signal intensity. As compared with plaques of N-BG, the plaques of BG are relatively more stable and account for a higher proportion at superior wall and a lower proportion at inferior wall and ventral wall of MCA M1 segment.
[Keywords] Brain Infarction；Magnetic resonance imaging；Middle cerebral artery；Plaque, atherosclerotic

ZHAO Qing-long Department of Magnetic Resonance, the First Affiliated Hospital of Harbin Medical University, Harbin 150001, China

LIU Tian-yi Department of Neurology, the First Affiliated Hospital of Harbin Medical University, Harbin 150001, China

YANG Shi-qi Department of Neurology, the First Affiliated Hospital of Harbin Medical University, Harbin 150001, China

LI Lu-lu Department of Magnetic Resonance, the First Affiliated Hospital of Harbin Medical University, Harbin 150001, China

LIU Peng-fei* Department of Magnetic Resonance, the First Affiliated Hospital of Harbin Medical University, Harbin 150001, China

LI Guozhong Department of Neurology, the First Affiliated Hospital of Harbin Medical University, Harbin 150001, China

WANG Wei Department of Magnetic Resonance, the First Affiliated Hospital of Harbin Medical University, Harbin 150001, China

CUI Ying-zhe Department of Magnetic Resonance, the First Affiliated Hospital of Harbin Medical University, Harbin 150001, China

*Correspondence to: Liu PF, E-mail: liup.fei@163.com

Conflicts of interest   None.

Received  2016-11-12
Accepted  2016-12-10
DOI: 10.12015/issn.1674-8034.2017.01.005
DOI:10.12015/issn.1674-8034.2017.01.005.

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