1. Intra- and inter-observer variability of uterine measurements with three-dimensional ultrasound and implications for clinical practice 
Sotirios H. Saravelos, Tin-Chiu Li 
Reproductive BioMedicine Online 
Volume 31, Issue 4, Pages (October 2015)
DOI: /j.rbmo
Copyright © 2015 Reproductive Healthcare Ltd. Terms and Conditions

2. Figure 1
Example of three different uteri: (a) a clear delineation can be seen of both lateral uterine walls; (b) the borders of the right lateral wall are less clear because of the rotation of the endometrial cavity; and (c) the borders of the left lateral wall are less clear because of the presence of the ovary.
Reproductive BioMedicine Online  , DOI: ( /j.rbmo )
Copyright © 2015 Reproductive Healthcare Ltd. Terms and Conditions

3. Figure 2
Relationship between the mean of three measurements for percentage of cavity indentation (cavity indentation/fundal wall thickness) and the difference between the highest and lowest measurements for observer 1 and 2. Here, it is shown that increase in cavity indentation does not cause an increase in the difference of measurements.
Reproductive BioMedicine Online  , DOI: ( /j.rbmo )
Copyright © 2015 Reproductive Healthcare Ltd. Terms and Conditions

4. Figure 3
Bland–Altman plots of inter-observer variability whereby the difference of the measurements between observer 1 and observer 2 is plotted against the mean of the measurements of observer 1 and observer 2. The mean difference of the measurements along with the limits of agreement (lower limit: mean difference −2SD; upper limit: mean difference +2SD) are depicted in each graph.
Reproductive BioMedicine Online  , DOI: ( /j.rbmo )
Copyright © 2015 Reproductive Healthcare Ltd. Terms and Conditions

5. Figure 3
Bland–Altman plots of inter-observer variability whereby the difference of the measurements between observer 1 and observer 2 is plotted against the mean of the measurements of observer 1 and observer 2. The mean difference of the measurements along with the limits of agreement (lower limit: mean difference −2SD; upper limit: mean difference +2SD) are depicted in each graph.
Reproductive BioMedicine Online  , DOI: ( /j.rbmo )
Copyright © 2015 Reproductive Healthcare Ltd. Terms and Conditions