A plot of a system's<unk>  versus<unk>  has long been used to measure the work done by the system and its efficiency. This<unk>  can be applied to heat engines and pumps, including the heart. A considerable amount of information on cardiac performance can be determined from the<unk>  vs.<unk>  plot<unk><unk><unk>  diagram). A number of methods have been determined for measuring PV-loop values experimentally.
Pressure–volume loop analysis in cardiology
Numerical modeling in echocardiography
Cardiac magnetic resonance imaging perfusion
Instruments used in cardiology
Aortic valve area calculation
Coronary CT calcium scan
Clinical cardiac electrophysiology
Cardiac electrophysiology