Most are measurements of the size of the heart chambers. For me, in my mind, the most important measure is EF, yours is 61%, which is good! When your heart beats, it first fills with blood, then squeezes out that blood. Normally about 66% gets squeezed out. This is called the Ejection Fraction. Anything above 55% is considered "normal". Down below 30% is considered heart failure. Hope that helps at least a little. DISCLAIMER: I am not a doctor, I am not qualified to provide medical advice.