Nuclear medicine radiologists are specialists in the use of radiopharmaceuticals for the diagnosis and treatment of a variety of conditions. In contrast to other areas of radiology which focus on anatomic imaging, nuclear medicine uses the administration of small amounts of radioactive tracers to study body physiology. Cardiovascular, pulmonary, renal, thyroid, hepatobiliary and musculoskeletal systems can be imaged to provide valuable functional information. Positron emission tomography (PET) is an increasingly important nuclear medicine imaging modality. PET is now widely accepted as the most effective imaging modality for most cancer patients, used both for initial evaluation as well as treatment monitoring.
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