radioscopy, radiology - (radiology) examination of the inner structure of opaque objects using X rays or other penetrating radiation

tracer - (radiology) any radioactive isotope introduced into the body to study metabolism or other biological processes

target organ - (radiology) organ intended to receive the therapeutic dose of a radioactive substance

medical science - the science of dealing with the maintenance of health and the prevention and treatment of disease

tomography, imaging - (medicine) obtaining pictures of the interior of the body

fluoroscopy - examination of body structures using a fluoroscope

radiology - the branch of medical science dealing with the medical use of X-rays or other penetrating radiation