End diastolic volume (EDV)

Definition

End Diastolic Volume (EDV) is the volume of blood in a ventricle at the end of filling, or diastole, before the heart contracts. It represents the maximum volume of blood that the ventricle will pump out during systole.

Related terms

Systole: The phase of the heart cycle during which the heart muscles contract and pump blood from the chambers into the arteries.

Diastole: The phase of the heart cycle when the heart muscle relaxes and allows the chambers to fill with blood.

Stroke Volume (SV): The amount of blood pumped by the left ventricle of the heart in one contraction, calculated as EDV minus end-systolic volume (ESV)