Fig. 4From: Quantification of left ventricular ejection fraction and cardiac output using a novel semi-automated echocardiographic method: a prospective observational study in coronary artery bypass patientsCardiac output measurements by TTE AutoEF, TOE VTILVOT, and PAC thermodilution. Boxes show the first (bottom), second (inner line indicating median) and third (top) quartile. The whiskers represent the limits of 1.5 times the interquartile range. Outliers are depicted as circles below and above these limits. The asterisk represents an extreme outlier. * p < 0.01. TOE: transoesophageal echocardiography, VTI: velocity time integral, LVOT: left ventricular outflow tractBack to article page