- 正电子发射层析 zhèngdiànzǐfāshècéngxī PET scanpositron emission tomography (PET); a medical imaging technique that uses radioactive substances to visualize metabolic processes in the body
- 正电子发射断层照相术 zhèngdiànzǐfāshèduàncéngzhàoxiāngshù positron emission tomographypositron emission tomography (PET)
- 正电子照射断层摄影 zhèngdiànzǐzhàoshèduàncéngshèyǐng positron emission tomographytype of medical imaging (PET) that uses radioactive substances to visualize the metabolic activity of tissues and organs