Point resolved spectroscopy (PRESS) at TE of 144 ms (14 tumors) and stimulated echo acquisition mode(STEAM) at TE of 30 ms(11 tumors) were utilized for localization techniques.

• 采用点分析波谱法(PRESS:TE=144ms,14例)和激励回波法(STEAM:TE=30ms,11例)进行1HMRS空间定位,以胆碱和脂质代谢物为标准评价所有肿瘤。