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Comparison between Border-Zone and Mixed Infarction in Children: Correlation between Magnetic Resonance Imaging and Neurological Severity
摘要
PURPOSE. The aims of this study were to assess the correlation between neuroimaging-detected abnormality and the neurological severity of border-zone infarction in children and to determine the relative clinical significance of border-zone infarction versus that of mixed infarction. MATERIALS AND METHODS. We retrospectively reviewed the magnetic resonance imaging (MRI) findings of 23 children between the ages of 1 month and 14 years who had been diagnosed as having border-zone infarction. An MRI score was calculated for each patient based on the extent of abnormality. Neurological severity was assessed with a scoring system based on the number of abnormal neurological features detected. We compared the neurological severity of border-zone infarction with that of mixed infarction in these children. RESULTS. A significant positive correlation was observed between MRI score and neurological severity score (R = 0.730, p ＜ 0.01, Spearman correlation). Fourteen patients had only border-zone infarcts (border-zone infarction group), 9 had other infarcts in addition to border-zone infarcts (mixed infarction group) in certain areas, including the corpus callosum, the basal ganglion, and vascular territories. Compared with the children in the border-zone infarction group, those in the mixed infarction group had higher neurological severity scores (median, 1.0 versus 3.0; p = 0.047) but not significantly different MRI scores (median, 3.0 versus 3.0; p = 0.35, Mann-Whitney U test). CONCLUSION. Compared with border-zone infarction, mixed infarction was associated with greater neurologically severity. MRI scores were positively correlated with neurological severity scores among the children with border-zone infarcts.
延伸閱讀
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