. Author manuscript; available in PMC: 2020 Jun 11.

Published in final edited form as: Proc SPIE Int Soc Opt Eng. 2019 Mar 8;10951:109512I. doi: 10.1117/12.2512282

Table II.

The average and range of inter-expert observer variability in manual prostate segmentation across the whole and the test dataset. Mean ± standard deviation of difference observed between two experts based on our metrics. Since both segmentation labels in each of the pairwise comparisons were from expert observers (i.e., lack of reference for MAD and signed ΔV calculation), the bilateral MAD (MAD_b) and absolute volume difference (|ΔV|) are reported in this Table. N_pat and N_Img are the number of patients and the number of test images, respectively.

ROI	N_Pat	N_Img	MAD_b (mm)	HDist (mm)	DSC (%)	\|ΔV\| (cm³)	\|ΔV\| (%)
Whole Gland	14	14	1.5 ± 0.6	9.0 ± 3.1	83 ± 8	4.7 ± 3.9	22 ± 19
Apex			1.5 ± 0.6	7.7 ± 2.6	79 ± 11	1.8 ± 1.4	28 ± 24
Mid-Gland			1.3 ± 0.4	6.7 ± 1.8	89 ± 5	1.5 ± 0.6	17 ± 11
Base			1.8 ± 0.9	7.9 ± 3.1	79 ± 11	2.4 ± 1.8	31 ± 24