Items tagged “pet-ct”
4 results found
Article
Standardized uptake value (SUV)
The standardized uptake value (SUV) applies to PET imaging of tumors and typically uses the radioligand F18-2-fluoro-2-deoxy-D-glucose (FDG). The concentration of F18 activity reflects glucose metabolism which is increased in tumor cells and inflammation.
SUV is also known as the dose uptake r...
Article
PET radiotracers
A PET radiotracer (also known as PET tracer) is a positron-emitting radiopharmaceutical used in positron emission tomography (PET). Each tracer consists of a positron-emitting isotope (radioactive tag) bound to an organic ligand (targeting agent). The ligand component of each tracer interacts wi...
Article
Herder risk model
British Thoracic Society (BTS) guidelines for pulmonary nodules1 recommend the application of the Herder risk model in predicting malignancy in pulmonary nodules.
The Herder model 2 predicts the risk of malignancy in solid pulmonary nodules using patient characteristics, nodules characteristics...
Article
Flip-flop fungus sign - FDG PET-CT
The flip-flop fungus sign suggests benign pulmonary disease on FDG-PET 1-4.
Lung cancer nodules demonstrate increasing FDG-avidity as the tumor grows. Lymph node spread occurs later and is therefore at an earlier stage of development and usually exhibits lower FDG-avidity 4.
Acutely, FDG-avidi...