Detection of Occult Primary Tumors in Patients with Cervical Metastases of Unknown Primary Tumors: Comparison of F-18 FDG PET/CT with Contrast-enhanced CT or CT/MR Imaging-Prospective Study

摘要

Purpose: To assess diagnostic accuracy of fluorine 18 (F-18) fluorodeoxyglucose (FDG) combined positron emission tomography (PET) and computed tomography (CT) in the detection of occult primary tumors and determination of optimal care in patients with cervical metastasis of an unknown primary tumor (CUP) compared with contrast material-enhanced CT alone or combined contrast-enhanced CT and magnetic resonance (MR) imaging (CT/MR imaging).