Fig. 8From: B-mode and color Doppler ultrasonography of normal external jugular vein in donkeys (Equus asinus)Bland–Altman difference plot for ultrasonographic measurements from the left and right sides of the jugular vein in donkeys. Y-axis: The ultrasound measurements taken from the left side minus the value of the same measurements obtained from the right one (Difference). X-axis: Average of the ultrasound measurements taken from the left and right sides. The mean of the differences or bias (red dashed line) and the 95% limits of agreement (mean ± 1.96 SD) are included in the graph (blue dotted lines)Back to article page