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Table 2 Dice similarity coefficient, 95th Hausdorff distance, and average boundary distance of 3D U-Net model on T2-weighted images (mean ± standard deviation)

From: Development and clinical utility analysis of a prostate zonal segmentation model on T2-weighted imaging: a multicenter study

Structure

CG

PZ

Datasets

DSC

95HD (mm)

ABD (mm)

DSC

95HD (mm)

ABD (mm)

 

Whole zone

Apex

Midgland

Base

Whole zone

Apex

Midgland

Base

Internal testing group

0.909 ± 0.044

0.856 ± 0.087

0.941 ± 0.033

0.901 ± 0.055

3.177 ± 1.395

0.575 ± 0307

0.844 ± 0.095

0.788 ± 0.133

0.896 ± 0.054

0.832 ± 0.092

3.636 ± 2.701

0.555 ± 0.525

ETDpub

0.889 ± 0.064

0.818 ± 0.094

0.937 ± 0.038

0.854 ± 0.118

4.271 ± 2.664

0.963 ± 0.611

0.755 ± 0.092

0.625 ± 0.169

0.818 ± 0.083

0.739 ± 0.140

3.599 ± 3.848

0.991 ± 0.627

ETDpri

0.869 ± 0.066

0.811 ± 0.155

0.916 ± 0.056

0.847 ± 0.075

6.973 ± 8.544

1.224 ± 1.485

0.764 ± 0.147

0.651 ± 0.251

0.818 ± 0.202

0.753 ± 0.152

6.973 ± 6.904

1.300 ± 1.442

  1. ETDpub Public external testing dataset, ETDpri Private external testing dataset, PZ Peripheral zone, CG Central gland, DSC Dice similarity coefficient, 95HD 95th Hausdorff distance, ABD Average boundary distance