Alliance Healthcare Radiology

Nuclear Medicine

Nuclear Medicine

Nuclear medicine uses small amounts of radioactive substances to evaluate organs, bones, or tissues. Unlike X-rays, where external radiation is used, in nuclear medicine the patient takes radiopharmaceuticals internally. There are several types of nuclear medicine diagnostic techniques.

  • Scintigraphy creates 2D images to evaluate areas such as bone, myocardial perfusion, and parathyroid.
  • SPECT is a 3D technique that helps doctors evaluate functional processes of the body.
  • Other techniques superimpose nuclear medicine scans onto CT images, for example.

Nuclear medicine shows the physiological function of the system being evaluated, rather than traditional anatomical images.


Alliance Radiology is a leading provider of advanced imaging services in the United States.