The volume of the heart's<unk>  atrium<unk>  is an important biomarker for cardiovascular physiology and clinical cardiology. It is usually calculated as<unk>  index in terms of body surface area.
Left atrial volume
Right atrial pressure
Transpulmonary pressure
Pulmonary wedge pressure
Coronary perfusion pressure
Mean systemic pressure
End-systolic volume
End-diastolic volume