Side effects of radiopharmaceutical therapy What are the potential adverse effects of radiopharmaceutical therapy? Side effects of radiopharmaceutical therapies are determined by the biodistribution and kinetics of the radiopharmaceutical agent as well as the different sensitivities of various organs to the effects of radiation. Toxicity can be subdivided into acute, subacute, and late phases. The …
Why is radiopharmaceutical therapy useful in thyroid disease? The most widely used form of radiopharmaceutical therapy is radioiodine for thyroid disease, the discovery and development of which was largely the birth of the specialty of nuclear medicine. Thyroid cells utilize dietary iodide to synthesize thyroid hormone, which is then stored in colloid adjacent to the …
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What are the different therapeutic radionuclide emissions? For radiopharmaceutical therapy to deliver radiation dose preferentially to sites of disease, the radiation must be delivered in a very small area around the location of the radiopharmaceutical. Thus, the gamma and x-ray emissions that are able to travel long distances and are very useful for imaging deliver …
What is the purpose of radiopharmaceutical therapy? In sufficient dosages, radiation will kill cells. In many cases, radiation can be delivered directly to sites of disease with external beam techniques. An alternative means of delivering radiation to sites of disease is radiopharmaceutical therapy, wherein a radioactive compound is administered to the patient. Through a combination …
What is amyloid imaging used for? Several different radiotracers are now approved for use (primarily for research purposes) in the evaluation of patients with cognitive impairment to help ascertain a diagnosis. Amyloid accumulation is characteristic of AD although it can also occur in other neurodegenerative disorders and has been observed in approximately 10% of the …
How is an 123 I ioflupane (DaTscan) performed, and what is it used for? 123 I ioflupane binds to the dopamine transporters, primarily in the basal ganglia. The scan is primarily used for the evaluation of movement disorders and in particular to differentiate true PD from other underlying disorders such as essential tremor. There is no …
How is a CSF scintigraphy study performed, and what is it used for? CSF scintigraphy typically involves the administration of a radiotracer such as 99m Tc DTPA into the CSF (usually via injection through a lumbar puncture at the base of the spinal column). Planar scintigraphic images are obtained initially and then at regular intervals up to …