Objective To study the biodistribution of L-S-methyl-11C-methioine (11C-MET) and explore its clinical application in positron emission tomography (PET) for brain tumor detection.

• 目的研究新型脑肿瘤显像剂11C-蛋氨酸的体内生物学分布,探讨11C-蛋氨酸的临床显像方法及其在脑肿瘤显像中的应用。