Fig. 2

Myocardial partition coefficients for gadolinium-DTPA (λGadolinium) in patients with PH and HFrEF. Results for the right ventricular (RV) and left ventricular (LV) λGadolinium are shown for patients with heart failure with reduced ejection fraction (HFrEF) (a, b) and pulmonary hypertension (PH) (c, d). λGadolinium is estimated as the slope of the linear fit of 1/(myocardial T1) vs 1/ (LV blood pool T1) measured at various time points pre- and post-injection of gadolinium-DTPA