PET/MRI is viable for tracking small lung nodules in cancer patients

Positron emission tomography combined with computed tomography (PET/CT) has served as the gold standard for the staging and restaging of a variety of cancers. However, PET combined with magnetic resonance imaging (PET/MRI) allows for greater contrast resolution of MR without radiation exposure and the metabolic information of PET to help determine the tumor burden in patients, but concerns exist regarding the ability of MRI to detect lung nodules that are less than 1 cm in diameter, which is below the resolution of PET imaging. Read more.