Heart Disease Forum
This expert forum is not accepting new questions. Please post your question in one of our medical support communities.
Avatar universal

Echocardiogram vs. MUGA

A year and a half ago, I was diagnosed with dilated cardiomiopathy after an echocardiogram.  It showed my EF to be 25%.  My cardiologist followed up with a MUGA scan which showed the EF to be 49%.  Recently, I had a stress echo test.  On it, my pre-exercise EF was 30% and my post-excercise EF was 35%.  Again, my cardiologist followed up with a MUGA, which said my EF was 59%.  Why such a difference and which is more likely to be correct?
3 Responses
238671 tn?1189755832
The echo and MUGA are completely different ways of imaging the heart and usually give numbers for the EF that are different from one another, though usually not by as much as in your case. These differences can be due to technical factors associated with the tests, or to associated abnormalities such as valve leakage (mitral regurgitation). The way I would interpret the tests is that your heart function has improved somewhat, though it is still moderately abnormal.
Avatar universal
This may be a strange question but does anyone out there know if EF can be too high?  My echo report says that mine is 80% which seems abnormally high if the norm is 50-60.
Avatar universal
A related discussion, Different values of LVEF on echocardiogram and MUGA was started.
Popular Resources
Is a low-fat diet really that heart healthy after all? James D. Nicolantonio, PharmD, urges us to reconsider decades-long dietary guidelines.
Can depression and anxiety cause heart disease? Get the facts in this Missouri Medicine report.
Fish oil, folic acid, vitamin C. Find out if these supplements are heart-healthy or overhyped.
Learn what happens before, during and after a heart attack occurs.
What are the pros and cons of taking fish oil for heart health? Find out in this article from Missouri Medicine.
How to lower your heart attack risk.