主要观察指标：病变部位及对侧的N-乙酰天门冬氨酸、胆碱、肌酸代谢率的测定；
MAIN OUTCOME MEASURES: Detection of the metabolic rates of N- acetyl-aspartic acid, choline and creatine in lesion area and the contralateral area;
主要观察指标：病变部位及对侧的N-乙酰天门冬氨酸、胆碱、肌酸代谢率的测定；
MAIN OUTCOME MEASURES: Detection of the metabolic rates of N- acetyl-aspartic acid, choline and creatine in lesion area and the contralateral area;
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