Voxels were selected in basal ganglia area,and 1H-MRS were processed to determined the metabolite ratios,including NAA/Cho,NAA/Cr,Cho/Cr.

• 采用2DCSI技术检测所有入组对象的双侧豆状核、尾状核的代谢物浓度,包括氮-乙酰天门冬氨酸/肌酸复合物(NAA/Cr),氮-乙酰天门冬氨酸/胆碱复合物(NAA/Cho)以及Cho/Cr比值。