Fig. 2
From: Automatic quantification of left ventricular function by medical students using ultrasound
The agreement between automatic and reference measurements. Each dot represents measurements from one patient. The difference is calculated as automatic minus reference measurements. Solid, horizontal lines show the mean differences. Dashed, horizontal lines show the 95% limits of agreement. e′, mitral annular early diastolic peak velocity; MAPSE, mitral annular plane systolic excursion; S′, mitral annular systolic peak velocity