Complementary Roles of ¹⁸F-DOPA PET/CT and ¹⁸F-FDG PET/CT in Medullary Thyroid Cancer

Abstract

For most MTC patients with occult disease, (18)F-DOPA PET/CT accurately detects metastases. In patients with an unstable calcitonin level, (18)F-DOPA PET/CT and (18)F-FDG PET/CT are complementary. For patients with an unstable CEA doubling time, (18)F-FDG PET/CT may be more feasible. MRI is sensitive but has the highest rate of false-positive results.