Fig. 4

Linear regression and Bland-Altman plots for stroke volume and cardiac output calculated from flow and from volumetric measurements. Comparison of the two techniques used for cardiac output (CO) and stroke volume (SV) estimation using Bland-Altman analysis. a Linear regression and Bland-Altman plots for SV calculated from aortic flow data (SVflow) and from left ventricle (LV) volume (SVvolume). b Linear regression and Bland-Altman plots for CO calculated from aortic flow data (COflow) and from LV volume (COvolume)