Definitions for "MUGA scan"
a nuclear medicine scan of the heart muscle function, which shows how well the blood flows through the ventricles
a test that measures the ejection strength of the heart.
A multigated acquisition scan, MUGA scan, is a procedure that allows a physician to examine the heart. Special pictures are taken of the heart following the introduction of a radioactive substance into a vein. Your doctor can then visualize the contraction and relaxation of the heart and blood supply to the heart.