Recent shortages of an isotope commonly used in bone scans have prompted several professional societies to urge CMS to offer cancer patients broad access to sodium fluoride-18 positron emission tomography to identify bone metastasis. In comments to CMS, the Academy of Molecular Imaging urges the Medicare agency to issue a final national coverage determination allowing unrestricted use of sodium fluoride-18 PET (18F-NaF PET) to diagnose bone cancer in patients already treated for another form of...