Image interpretation
Breast lesions
The PET/CT center’s chief physician and senior attending physician reviewed the images together and disagreement, if any, was resolved by consensus. The lesion was visually identified. A 3D region of interest (ROI) of the lesion was automatically outlined using the 40% threshold method, and PET metabolic parameters were measured, seen as Fig. Breast lesions with radionuclide concentrations greater than those in normal breast tissue were considered to be BC lesions, while lymph nodes with radionuclide concentrations greater than those in muscle tissue were considered to be metastatic lymph nodes.
Metabolic parameters measurements of PET/CT scan. Female, 56 years-old, with BC. MIP image (