Heart Valve Surface Calculator


Surface according to given diameter:
in mm² :
in cm² :

Diameter according to given surface:
in mm :
in cm :

Heart Valve Surface

The shape of the valve is considered circular. Enter the measured diameter (echo, scan...) of the valve ring to get its area. Enter an area to get the diameter. The two calculations are not related, you can do both at the same time.

heart valve

A heart valve is an element of the heart separating the different chambers and preventing blood from flowing back in the wrong direction.

In mammals whose heart is made up of four chambers, the heart contains four valves:

The mitral valve between the left atrium (or auricle) and the left ventricle;

The tricuspid valve between the right atrium (or auricle) and the right ventricle;

The aortic valve between the left ventricle and the aorta;

The pulmonary valve between the right ventricle and the pulmonary artery.

In the event of dysfunction of one of these valves, an artificial heart valve can be placed, either of the mechanical type or of the bioprosthetic type.

When should a heart valve be changed?

The surgical operation of the heart valve is indicated in case of functional impairment, or significant dilation of the left ventricle or the initial aorta. The valve is then replaced by an artificial or biological valve.