Normal Mitral Valve M-Mode
As a former, heart valve replacement patient, I remember that one of the most critical steps in the diagnosis of my defective aortic heart valve was the echocardiogram.
During this twenty minute exam, the radiologist or technician (not the cardiologist) determines several key facts and metrics about the functioning of your heart including the ejection fraction and the normal mitral valve m-mode.
One of the key measurements of the echocardiogram is the mitral valve m-mode. For each of the key metrics, there are statistics which indicate a normal mitral valve m-mode from a problematic mitral valve m-mode.
According to my research, the normal mitral valve m-mode is between 55-70%, with very athletic individuals having a normal mitral valve m-mode at greater than 70%.
If you are interested, above is a picture of an echocardiogram with a normal mitral m-mode.