What is the normal ejection fraction level in cardiology. and what is the most healthy one? also my echo in 2011 was 50% 2012 was 55% 2014 is 60%.

55% is the cutoff.: 55% is the cutoff point, the higher the better.

Its a range: Normal ejection fraction is between 55-70%. Your ejection fraction is normal.

Normal EF is >50%: Normal EF is 55% or above. It is also true that sometimes the function is reported as visual estimation, and so minor changes in EF between different test could be, as we say, operator-dependent. I am assuming that your left ventricular function was normal since 2011, however it was appropriate to monitor because the number 50% was, so to speak, "low normal". Your numbers are now perfectly normal.

Ranges: "ejection fraction" measurements are best thought of in ranges. any specific measurement can vary a bit from day to day, or meal to meal. Normal is generally 55-75% low normal 50-55% mild dysfunction 40-50% moderate dysfunction 30-40% severe dysfunction

Normal EF: A normal EF is considered >55. The variation in your EF is likely read dependent. If the lowest EF you have is 50% I would not be to concerned. I would need to know more about your history but at an EF of 50% you are not at a high risk for sudden cardiac death compared to someone with an EF of 35% or lower.

60%: Normal EF is 60-65%. The variation in your echocardiogram can come from reader variability. It is known that in general cardiologists can have an intraobserver variability from 5 to 10% which would explain the fluctuations in your readings.

Normal: In general, ejection fraction more than 50% is considered normal. However, if the ejection fraction is calculated should be more than 52% in males and more than 54% in females.