ArticleScientific reports2026
Comparison of noninvasive pressure-volume loops derived from cardiac magnetic resonance and transthoracic echocardiography in normal subjects.
Article in Scientific reports, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
The pressure-volume (PV) loop illustrates the changing interaction between left ventricular (LV) pressure and volume throughout a cardiac cycle, and can be reconstructed noninvasively using either cardiac magnetic resonance (CMR) or transthoracic echocardiography (TTE). While reference values have been described, a direct comparison of PV loop parameters derived from CMR and TTE data within the same group of individuals has not been reported yet. In this study, we aimed to evaluate PV loop indices obtained by both techniques in a cohort of healthy volunteers. Twenty participants underwent cine-CMR and 2D-TTE examinations during the same seven-day period at the Heart Center UMC in Astana, Kazakhstan. Image datasets were post-processed with a dedicated software to derive conventional volumetric indices together with PV loop parameters: ventricular elastance (E
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