positron emission tomography
/pˈɑːsɪtɹˌɑːn ɪmˈɪʃən təmˈɑːɡɹəfi/
/pˈɒsɪtɹˌɒn ɪmˈɪʃən təmˈɒɡɹəfi/
PETPositron emission tomography
01
正电子发射断层扫描, PET
a medical imaging technique that uses a small amount of radioactive tracer material to diagnose and monitor diseases such as cancer, heart disease, and neurological disorders
例子
The PET scan revealed a hot spot indicating increased metabolic activity in the brain.
正电子发射断层扫描显示出一个热点，表明大脑中的代谢活动增加。
Doctors recommended a PET scan to assess the extent of tumor growth in her lungs.
医生建议进行正电子发射断层扫描以评估她肺部肿瘤的生长程度。
