Nuclear Medicine physicians evaluate up to 34 cases of patients who have received regular thyroid diagnostics. Data and images of patient characteristics, laboratory results, ultrasonography loops and planar 99mTcO4 scintigraphy are provided and the physicians are asked to assign the function (hypo-, iso-, hyperfunctional) to predefined thyroid nodules visible on ultrasonography.

Nuclear Medicine physicians evaluate up to 34 cases of patients who have received regular thyroid diagnostics and additional I-124 PET/CT, followed by I-124 PET/US (administration of I-124 was not subject of this study). Data and images of patient characteristics, laboratory results, ultrasonography loops, planar 99mTcO4 scintigraphy as well as I-124 PET/US loops are provided and the physicians are asked to assign the function (hypo-, iso-, hyperfunctional) to predefined thyroid nodules visible on ultrasonography.

Assessment of preacquired I-124 PET/US by review of anonymous digital case files

The number of correct assignments of metabolic function of each nodule will be assessed for each group seperately. A three-point scale will be used for evaluation of the nodule's function and the degree of the physicians certainty will be investigated using a four-point scale.