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;
目的：观察海洛因海绵状白质脑病患者的1H-MRS表现，分析其脑内N-乙酰天门冬氨酸、肌酸和胆碱的代谢规律。
OBJECTIVE: To observe the 1H-MRS manifestations of patients with heroin spongiform leucoencephalopathy so as to analyze metabolic regularities of N-acetyl aspartate, creatine and bilineurine in brain.
目的：观察海洛因海绵状白质脑病患者的1H-MRS表现，分析其脑内N-乙酰天门冬氨酸、肌酸和胆碱的代谢规律。
OBJECTIVE: To observe the 1H-MRS manifestations of patients with heroin spongiform leucoencephalopathy so as to analyze metabolic regularities of N-acetyl aspartate, creatine and bilineurine in brain.
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