Table 4 Ablation study on AbdomenNet architecture. We report mean Dice scores and average symmetric surface distance per organ and the mean scores across organs

Dice coefficient

QuickNAT

0.948 ± 0.021

0.903 ± 0.043

0.922 ± 0.018

0.920 ± 0.023

0.503 ± 0.141

0.505 ± 0.185

0.733 ± 0.075

0.596 ± 0.206

0.754 ± 0.066

QuickNAT+Oct

0.950 ± 0.020

0.907 ± 0.033

0.920 ± 0.015

0.916 ± 0.021

0.502 ± 0.161

0.492 ± 0.161

0.739 ± 0.097

0.671 ± 0.138

0.762 ± 0.059

AbdomenNet

0.950 ± 0.019

0.908 ± 0.034

0.921 ± 0.013

0.919 ± 0.023

0.516 ± 0.155

0.517 ± 0.136

0.742 ± 0.086

0.712 ± 0.146

0.773 ± 0.054

Average symmetric surface distance (mm)

QuickNAT

1.484 ± 1.005

1.373 ± 0.918

0.623 ± 0.144

0.652 ± 0.255

1.492 ± 0.514

1.916 ± 1.026

2.184 ± 0.748

2.873 ± 2.076

1.575 ± 0.500

QuickNAT+Oct

1.284 ± 0.835

1.220 ± 0.548

0.651 ± 0.131

0.815 ± 0.426

1.484 ± 0.673

1.825 ± 0.900

2.006 ± 0.921

2.208 ± 1.203

1.437 ± 0.378

AbdomenNet

1.206 ± 0.780

1.191 ± 0.512

0.640 ± 0.129

0.801 ± 0.534

1.355 ± 0.547

1.667 ± 0.851

2.093 ± 0.938

1.849 ± 1.206

1.350 ± 0.350