Table 2 Segmentation performance of both nnU-Net configurations and the Swin UNETR for all seven labels with 5-fold cross validation and ensembled predictions.

From: Automatic segmentation of liver structures in multi-phase MRI using variants of nnU-Net and Swin UNETR

nnU-Net6

DSC

IOU

PPV

TPR

LFPR

LTPR

VD

Liver parenchyma

0.97 [0.97, 0.98]

0.95 [0.94, 0.96]

0.97 [0.96, 0.98]

0.98 [0.98, 0.99]

–

–

0.03 [0.02, 0.04]

Portal vein

0.83 [0.80, 0.87]

0.73 [0.69, 0.76]

0.86 [0.82, 0.89]

0.82 [0.78, 0.86]

–

–

0.12 [0.08, 0.16]

Hepatic veins

0.78 [0.77, 0.80]

0.65 [0.63, 0.68]

0.83 [0.80, 0.85]

0.77 [0.74, 0.80]

–

–

0.18 [0.14, 0.22]

Lesions

0.56 [0.48, 0.64]

0.44 [0.36, 0.51]

0.78 [0.71, 0.86]

0.52 [0.44, 0.61]

0.10 [0.04, 0.17]

0.65 [0.57, 0.74]

0.66 [0.38, 0.93]

Ascites

0.44 [0.16, 0.71]

0.32 [0.09, 0.55]

0.74 [0.42, 1.10]

0.36 [0.09, 0.63]

–

–

0.69 [0.25, 1.12]

Abdominal aorta

0.96 [0.96, 0.97]

0.93 [0.92, 0.94]

0.96 [0.96, 0.97]

0.97 [0.96, 0.98]

–

–

0.04 [0.03, 0.05]

Thoracic aorta

0.93 [0.91, 0.95]

0.87 [0.84, 0.90]

0.92 [0.89, 0.95]

0.94 [0.93, 0.96]

–

–

0.10 [0.07, 0.14]

ResEnc nnU-Net21

Liver parenchyma

0.97 [0.97, 0.98]

0.95 [0.94, 0.96]

0.96 [0.95, 0.97]

0.98 [0.98, 0.99]

–

–

0.03 [0.02, 0.05]

Portal vein

0.83 [0.79, 0.86]

0.72 [0.68, 0.76]

0.86 [0.82, 0.89]

0.81 [0.77, 0.85]

–

–

0.13 [0.09, 0.17]

Hepatic veins

0.78 [0.76, 0.80]

0.64 [0.62, 0.67]

0.83 [0.80, 0.85]

0.75 [0.72, 0.78]

–

–

0.18 [0.15, 0.21]

Lesions

0.51 [0.43, 0.60]

0.40 [0.32, 0.48]

0.77 [0.69, 0.85]

0.47 [0.38, 0.56]

0.19 [0.10, 0.27]

0.63 [0.54, 0.72]

0.73 [0.47, 0.98]

Ascites

0.41 [0.18, 0.64]

0.28 [0.11, 0.46]

0.77 [0.43, 1.11]

0.31 [0.09, 0.55]

–

–

0.67 [0.42, 0.91]

Abdominal aorta

0.96 [0.96, 0.97]

0.93 [0.92, 0.94]

0.96 [0.96, 0.97]

0.96 [0.96, 0.97]

–

–

0.04 [0.03, 0.05]

Thoracic aorta

0.93 [0.91, 0.95]

0.87 [0.84, 0.90]

0.92 [0.89, 0.94]

0.95 [0.93, 0.96]

–

–

0.12 [0.07, 0.16]

Swin UNETR22

Liver parenchyma

0.96 [0.95, 0.97]

0.92 [0.90, 0.94]

0.94 [0.92, 09.6]

0.98 [0.97, 0.98]

–

–

0.09 [0.05, 0.13]

Portal vein

0.74 [0.70, 0.78]

0.60 [0.56, 0.64]

0.82 [0.78, 0.86]

0.69 [0.64, 0.74]

–

–

0.35 [0.26, 0.43]

Hepatic veins

0.65 [0.61, 0.70]

0.51 [0.46, 0.55]

0.78 [0.74, 0.81]

0.61 [0.56, 0.66]

–

–

0.48 [0.38, 0.59]

Lesions

0.47 [0.40, 0.55]

0.35 [0.28, 0.41]

0.65 [0.56, 0.74]

0.44 [0.37, 0.52]

0.55 [0.46, 0.63]

0.63 [0.54, 0.73]

1.47 [0.69, 2.25]

Ascites

0.28 [0.08, 0.49]

0.19 [0.04, 0.34]

0.45 [0.15, 0.74]

0.22 [0.05, 0.39]

–

–

3.99 [-2.76, 10.8]

Abdominal aorta

0.94 [0.94, 0.95]

0.89 [0.88, 0.91]

0.95 [0.94, 0.96]

0.94 [0.93, 0.96]

–

–

0.11 [0.08, 0.14]

Thoracic aorta

0.87 [0.83, 0.90]

0.78 [0.74, 0.83]

0.89 [0.86, 0.93]

0.86 [0.82, 0.91]

–

–

0.30 [0.21, 0.39]

  1. Best and second best results are bold and italic, respectively. The 95%-confidence intervals are denoted in brackets.
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