Comparison of the Use of FDG PET/CT and Ultrasonography for the Diagnosis of Recurrent or Metastatic Disease after Treatment for Differentiated Thyroid Carcinoma

Purpose: This study was designed to compare the accuracy of the use of PET/CT and ultrasonography (US) for the detection of recurrence or a metastasis after surgical treatment in patients with differentiated thyroid carcinoma. Materials and Methods: A total of 128 patients with differentiated thyroid carcinoma, who had previously undergone a neck operation, were evaluated with the use of PET/CT and US. The two studies were performed within three...