18F-NaF PET Imaging for Bone Scintigraphy

Official Title

18F- Sodium Fluoride PET Imaging as a Replacement for Bone Scintigraphy


The purpose of this study is to compare, in patients with prostate or breast cancer, the accuracy of 18F-NaF PET imaging to 99mTc whole body bone scans with single-photon emission computed tomography (SPECT).

Trial Description

Primary Outcome:

  • Accuracy, sensitivity, and specificity of 18F-Sodium Fluoride (18F-NaF) Positron Emission Tomography compared to 99mTc-Methylene Diphosphonate (MDP) bone SPECT imaging for detection of bone metastasis.
Secondary Outcome:
  • The secondary outcome is to monitor the short-term side-effects following 18F-NaF PET/CT to assess for adverse drug reactions
Technetium-99m (99mTc) is the most widely used radionuclide in diagnostic nuclear medicine studies. It is used in 20 million diagnostic procedures worldwide annually. It became popular as a radioisotope because of its easy availability from a 99Molybdenum (99Mo)/99mTc generator, historic low costs, and previous high availability. The National Research Universal (NRU) reactor at Chalk River Laboratories (Ontario, Canada) was shut down unexpectedly in May 2009 following a leak of heavy water. The NRU reactor supplied approximately a third of the world's demand of 99Mo for 99Mo/99mTc generators used diagnostic nuclear medicine tests. Given the fragility of 99Mo supply, alternative radiopharmaceuticals, such as 18F-Sodium Fluoride (18F-NaF), are attractive options to replace 99mTc bone scans. Several studies suggest that 18F-NaF may be more accurate and more sensitive in the detection of bone metastases than 99mTc bone scans.

View this trial on ClinicalTrials.gov

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