Search the dictionary A Chinese word or character, or English Search 2 entries. zhèngdiànzǐzhàoshèduàncéngshèyǐng 正电子照射断层摄影 positrion emission tomography (PET) zhèngdiànzǐzhàoshèduàncéngshèyǐng 正電子照射斷層攝影 positrion emission tomography (PET)