DOI: 10.5176/2382-5669_CCMR13.06
Authors: Sajith Matthews
Abstract:
Pressure volume loops give great insight into the contractility of the heart. However, pressure volume measurements pertaining to contractility are still fundamentally derived from invasive conductance catheters. We review different formulations of PV loops that have been derived through non-invasive or low invasive measures. We also a review of estimates of indices of contractility that have been derived through non-invasive measurements and mathematical equations. While a completely non-invasive PV loop has not yet be made available in day to day clinical use, the use of 3D echocardiography as well as mathematically derived indices of contractility indicate that a non-invasive PV loop in clinical setting is feasible. Such a method would be both cost effective and safer than the present means of obtaining pressure volume data.
Keywords: pressure-volume loops, non-invasive cardiac indices, 3D echocardiography, ESPVR, EDPVR, wall stress, flow volume loops
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