Discriminatory and prognostic value of MRI-derived myocardial work efficiency in heart failure with preserved ejection fraction: beyond global longitudinal strain
Left ventricular (LV) global longitudinal strain (GLS) is an established diagnostic and prognostic marker in heart failure with preserved ejection fraction (HFpEF) ; however, it is sensitive to LV afterload. Pressure-volume (PV) loop analysis accounts for LV loading conditions and may provide additional insights...