Study on correlation between basilar artery plaque parameters and infarct volume
LU Xin1 YANG Yin-dong2▲ YANG Xiao-fan2 CHEN Lan-juan1 XIE Jin-jin1 HOU Zong-yi1
1.Graduate School,Mudanjiang Medical University,Heilongjiang Province,Mudanjiang 157011,China;
2.Department of Neurology,Hongqi Hospital Affiliated to Mudanjiang Medical University,Heilongjiang Province,Mudanjiang 157011,China
Abstract：Objective To measure the infarct volume and basilar artery plaque parameters in patients with brainstem infarction by resolution magnetic resonance imaging of vascular walls,and to determine the relationship between plaque parameters and infarct volume.Methods A total of 22 patients with brainstem infarction initially diagnosed in Hongqi Hospital Affiliated to Mudanjiang Medical University from October 2017 to June 2018 were enrolled for high-resolution magnetic resonance imaging.The infarct volume,lumen area at the narrowest level,vascular area at the narrowest level,maximum wall thickness and minimum wall thickness were measured by software.The wall area,narrowest patch area,stenosis rate,reconstruction index,patch load and eccentricity index were calculated.The correlation between plaque parameters and infarct volume was analyzed.Results The infarction volume of the 22 patients included in the analysis was(309.07±253.97)mm3,the lumen area at the narrowest level was(4.54±4.13)mm2,the vascular area at the narrowest level was(15.60±8.04)mm2,the wall area was(11.09±4.89)mm2,the plaque area at the narrowest level was(3.63±2.81)mm2,the maximum wall thickness was(1.30±0.32)mm,the minimum wall thickness was(0.60±0.22)mm,and the stenosis rate was 3%～88%.The results of reconstruction mode showed that 7 cases were positive reconstruction,9 cases were negative reconstruction,and 6 cases showed no obvious reconstruction.Negative reconstruction was as common as positive reconstruction.Pearson correlation analysis results showed that the infarct volume was positively correlated with the stenosis rate(r=0.45,P=0.04)and negatively correlated with the reconstruction index(r=-0.47,P=0.03).Conclusion 3.0 T high resolution magnetic resonance measurement of basilar artery plaque parameters can be used to guide clinical treatment and disease monitoring,which is conducive to improving long-term prognosis.
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