Fig. 1

Bland–Altman plot showing bias and LOA between the SV measurements with TPTD and echocardiography. Data are expressed as mean between the SV measurements of TPTD and echocardiography plotted against the difference of both measurements. Bias = 0.28 (black line), upper level of agreement = 40 ml, lower level of agreement = − 39 ml within a 95% confidence interval (dotted line) mint circle, ECMO blood flow 2.0–2.9 l/min; green square, ECMO blood flow 3.0–3.9 l/min; blue rhombus, ECMO blood flow 4.0–4.9 l/min; grey triangle; ECMO blood flow > 5.0 l/min. Echo, echocardiography; TPTD, transpulmonary thermodilution; SV, stroke volume