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Ejection fraction MRI vs echocardiogram?

My echo last month showed my LV ejection fraction being at 70
My MRI 2 weeks after that showed it being at 50%.
Thats a 20 percent deop. I took xanax the doctors gave me before it to calm down and i had been on flecainide for a day also. Dont know if those medicines could lower it.
1 Responses
11548417 tn?1506080564
It is very unlikely that your EF has gone down from 70 to 50% in two weeks time when there is no obvious reason for it.

MRI often underestimates EF and both imaging modalities has quite some margin of error when it comes to EF estimation.

If it did not raise eyebrows with your doctor, I would not pay it much attention either, if I were you.
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