What is the term for the introduction of radioactive materials into the body for creating three-dimensional display images?

The correct term for the introduction of radioactive materials into the body for creating three-dimensional display images is planar nuclear medicine imaging. This method utilizes radioactive substances known as radiopharmaceuticals. These materials emit gamma rays, which can be detected by specialized cameras to form images of the distribution of the radioactive material within the body. The images produced can be used to assess the function of organs and identify any abnormal metabolic activity.

While computed tomography (CT) creates detailed images of internal structures, it does not involve the use of radioactive materials in the same manner as planar nuclear medicine imaging. Radionuclide therapy refers to the therapeutic use of radioactive materials to treat diseases, particularly cancers, rather than for diagnostic imaging. Digital imaging is a broad term that encompasses various types of imaging technologies but does not specifically relate to the introduction of radioactive materials for imaging purposes.