Cancer Treatment Centers of America

Multiple-gated acquisition (MUGA) scan

Some cancer treatments, such as certain chemotherapy drugs, may affect heart function. We use multiple-gated acquisition (MUGA) scans to evaluate and monitor changes in the function of the heart throughout a patient’s treatment.

This non-invasive test works by injecting small amounts of radioactive substances into the bloodstream. These substances are then picked up by the scan to produce what is, in essence, a "movie" of the working heart.

MUGA scans help us determine if the heart is pumping blood properly and, ultimately, if we need to modify a patient’s treatment regimen.