<unk>  is an indirect method of determining the<unk>  of the aortic<unk> .  The calculated aortic<unk>  orifice<unk>  is currently one of the measures for evaluating the severity of aortic stenosis. A<unk> <unk>  of less than 0.8 cm² is considered to be severe aortic stenosis.
There are many ways to calculate the<unk> <unk>  of aortic stenosis.  The most commonly used methods involve measurements taken during echocardiography. For interpretation of these<unk> s, the<unk>  is generally divided by the body surface<unk> , to arrive at the patient's optimal aortic<unk>  orifice<unk> .
Aortic valve area calculation
Aortic insufficiency classification of severity
Tricuspid stenosis classification
Aortic stenosis classification
Tricuspid regurgitation classification
Atrial septal defect evaluation of shunt flow
Coronary angiography right coronary artery
Left ventricular aneurysm classification