clinical imaging procedure nuclear medicine imaging procedure 2023-02-21T19:50:18Z scintigraphy nuclear medicine scan NCIT:C62667 radionuclide imaging radionuclide scanning radioimaging Use of a small amount of radioactive chemical called a tracer that can aid in imaging a target organ. The tracer emits gamma rays which are detected by a gamma radiation camera and analyzed by a computer to form the image of the desired region.