noun
positron emission tomography; PET
Medical imaging technique; often abbreviated as PET in both English and Japanese.
ポジトロン断層法はがんの診断に使われる。
Positron emission tomography is used for cancer diagnosis.
医者はポジトロン断層法の結果を説明した。
The doctor explained the results of the PET scan.
From English 'positron' (ポジトロン) + 断層 (fault, cross-section) + 法 (method). The term is a direct translation of 'positron emission tomography'.