劍橋詞典abbreviation for positron emission tomography scan : a medical test that can produce an image of the brain or of another part of a person's body 正電子發(fā)射計算機(jī)斷層攝片（positron emission tomography scan的縮寫） The researchers carried out a PET scan to monitor his brain activity . 研究人員採用正電子計算機(jī)斷層攝片來監(jiān)看他的大腦活動。 返回 PET scan