Improving the imaging diagnostic strategy for pulmonary artery masses based on F-FDG PET/CT integrated with CTPA.

Objective: To evaluate the diagnostic accuracy of computed tomography pulmonary angiography (CTPA) and F-fluorodeoxyglucose positron emission tomography/computed tomography (F-FDG PET/CT) for pulmonary artery (PA) masses.

Methods: Of 2889 patients with PA filling defects of PA on CTPA, 79 consecutive patients suspicious for PA malignancy who subsequently underwent F-FDG PET/CT were enrolled. All masses were diagnosed on the basis of pathological findings or clinical imaging follow-up.