page_title: Pressure–volume loop analysis in cardiology
section_title: Arterial elastance
hierarchical_section_title: Pressure–volume loop analysis in cardiology / PV loop analysis / Arterial elastance
caption_attribution_description: English: Arterial Elastance
context_page_description: A plot of a system's pressure versus volume has long been used to measure the work done by the system and its efficiency. This analysis can be applied to heat engines and pumps, including the heart. A considerable amount of information on cardiac performance can be determined from the pressure vs. volume plot. A number of methods have been determined for measuring PV-loop values experimentally.
context_section_description: Arterial elastance (Ea) is a measure of arterial load and is calculated as the simple ratio of ventricular end-systolic pressure to stroke volume.
  In mathematical terms, 
  By characterizing both the ventricular and arterial systems in terms of pressure and stroke volume, it is possible to study the ventriculo-arterial coupling (the interaction between the heart and the arterial system).
caption: Arterial elastance
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