Abstract
18F-NaF PET/CT is a well-established and validated imaging tool for imaging skeletal system. The bio-distribution represents blood flow that varies among different bones; due to urinary excretion, bladder and kidneys can be normally visualized. The role of this tracer has been well demonstrated in imaging bone metastases, with sensitivity superior to 18F-FDG PET/CT and other conventional imaging modalities. In particular, 18F-NaF PET/CT can detect bone malignant involvement before lesions can be radiologically documented; however, a lack of specificity should be considered, due to the possibility of uptake in benign diseases as calcium deposits in brain and large arteries, osteoarthritis and post-traumatic lesions. Beyond oncology, this tracer can play a role in forensic use, evaluation of skeletal benign diseases, and atherosclerotic plaque.
18F-NaF uptake is also documented in meningioma, rheumatoid arthritis, amyloidosis, and lymphomas. Globally, nuclear medicine physicians must take into account the possibility of 18F-NaF uptake in all calcifications that can occur in benign or malignant diseases.
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Abbreviations
- 18F-FDG:
-
18F-fluorodeoxyglucose
- 99mTc-MDP:
-
99mTc-methyldiphosfonate
- CT:
-
Computed tomography
- EANM:
-
European Association of Nuclear Medicine and Molecular Imaging
- FDA:
-
Food and Drug Administration
- MIP:
-
Maximum intensity projection
- PET/CT:
-
Positron emission computed tomography/computed tomography
- SPECT:
-
Single photon emission computed tomography/computed tomography
- SUV:
-
Standardized uptake value
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Calabria, F., Schillaci, O. (2020). 18F-NaF. In: Calabria, F., Schillaci, O. (eds) Radiopharmaceuticals. Springer, Cham. https://doi.org/10.1007/978-3-030-27779-6_5
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