Insights into Imaging

Table 2 Summarized similarity metrics for all radiologists and all structures (WG vs. TZ, and WG divided along cranio-caudal axis in base, mid-gland and apex), with 2 methods (pair-wise comparison and consensus comparison (STAPLE reference))

From: Challenge of prostate MRI segmentation on T2-weighted images: inter-observer variability and impact of prostate morphology

Structure	Method	DSC	HD (voxels)	AHD (voxels)
WG	Pairwise	0.92 ± 0.02	9.77 ± 3.78	0.17 ± 0.08
TZ		0.88 ± 0.05	11.98 ± 4.92	0.31 ± 0.19
WG	STAPLE	0.94 ± 0.03	8.15 ± 3.33	0.11 ± 0.07
TZ		0.91 ± 0.05	10.03 ± 4.25	0.21 ± 0.16
Base	Pairwise	0.87 ± 0.06	9.66 ± 4.61
Mid-gland		0.95 ± 0.02	7.51 ± 3.63
Apex		0.90 ± 0.06	7.12 ± 3.73
Base	STAPLE	0.91 ± 0.06	7.87 ± 3.69
Mid-gland		0.96 ± 0.02	6.10 ± 3.05
Apex		0.93 ± 0.05	5.88 ± 3.05

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