Methods: Normal group (n=4), greater ischemic cerebral infarcts group(n=6) and cerebral tumors group(n=6) were examined in PRESS sequence of Marconi 1.5 T instrument and the metabolic information was analyzed.

• 方法 :Marconi1.；5T磁共振PRESS序列波谱成像；其中正常人 4例；大面积脑梗塞 6例；脑肿瘤 6例；分析波谱成像所能提供的代谢物信息。