Fig. 1

Correlation analysis between transesophageal heart color ultrasound monitor and PICCO parameters. 1a Monitoring data of global ejection fraction (GEF) in 2–4 s; 1b Monitoring data of cardiac index (CI) in 2–4 s; 1c Monitoring data of global end diastolic volume index (GEDI) in 2–4 s; 2a Monitoring data of global ejection fraction (GEF) in 5–7 s; 2b Monitoring data of cardiac index (CI) in 5–7 s; 2c Monitoring data of global end diastolic volume index (GEDI) in 5–7 s; 3a Monitoring data of global ejection fraction (GEF) in 8–10 s; 3b Monitoring data of cardiac index (CI) in 8–10 s; 3c Monitoring data of global end diastolic volume index (GEDI) in 8–10 s