Table 1 Results of the simulation study.

From: Revisiting the identification of tumor sub-volumes predictive of residual uptake after (chemo)radiotherapy: influence of segmentation methods on 18F-FDG PET/CT images

  

GT

FLAB

3040

4040

5040

6040

7040

8040

9040

3090

4090

5090

6090

7090

8090

9090

High true overlap

 

Dice

0.770

0.788 (+2%)

0.488 (−37%)

0.562 (−27%)

0.668 (−13%)

0.763 (−1%)

0.763 (−1%)

0.677 (−12%)

0.415 (−46%)

0.073 (−91%)

0.092 (−88%)

0.129 (−83%)

0.191 (−75%)

0.260 (−66%)

0.355 (−54%)

0.587 (−24%)

OF

0.772

0.869 (+13%)

0.979 (−27%)

0.948 (+22%)

0.886 (+15%)

0.793 (+3%)

0.882 (+14%)

0.980 (+27%)

1.000 (+30%)

1.000 (+30%)

1.000 (+30%)

1.000 (+30%)

1.000 (+30%)

1.000 (+30%)

1.000 (+30%)

0.970 (+26%)

X

0.767

0.720 (+6%)

0.325 (−58%)

0.400 (−48%)

0.537 (−30%)

0.735 (−4%)

0.882 (+15%)

0.980 (+28%)

1.000 (+30%)

0.038 (−95%)

0.048 (−94%)

0.069 (−91%)

0.105 (−86%)

0.149 (−81%)

0.216 (−72%)

0.421 (−45%)

Y

0.772

0.869 (+13%)

0.979 (+27%)

0.948 (+23%)

0.886 (+15%)

0.793 (+3%)

0.672 (−13%)

0.517 (−33%)

0.262 (−66%)

1.000 (+30%)

1.000 (+30%)

1.000 (+30%)

1.000 (+30%)

1.000 (+30%)

1.000 (+30%)

0.970 (+26%)

Acc

N/A

0.960

0.715

0.722

0.737

0.765

0.813

0.877

0.811

0.635

0.635

0.635

0.635

0.635

0.635

0.631

Low true overlap

 

Dice

0.347

0.385 (+11%)

0.519 (+50%)

0.594 (+71%)

0.690 (+99%)

0.562 (+62%)

0.516 (+49%)

0.440 (+27%)

0.309 (−11%)

0.079 (−77%)

0.099 (−71%)

0.140 (−60%)

0.178 (−49%)

0.156 (−55%)

0.355 (−54%)

0.036 (−90%)

OF

0.348

0.422 (+21%)

1.000 (+187%)

0.964 (+177%)

0.886 (+154%)

0.569 (+63%)

0.615 (+77%)

0.660 (+90%)

0.776 (+123%)

1.000 (+187%)

1.000 (+187%)

1.000 (+187%)

0.861 (+147%)

0.556 (+60%)

0.222 (−36%)

0.056 (−84%)

X

0.346

0.354 (+2%)

0.351 (+1%)

0.429 (+24%)

0.566 (+64%)

0.556 (+61%)

0.615 (+78%)

0.660 (+91%)

0.776 (+124%)

0.041 (−88%)

0.052 (−84%)

0.075 (−78%)

0.099 (−71%)

0.090 (−74%)

0.216 (−72%)

0.026 (−92%)

Y

0.348

0.422 (+21%)

1.000 (+187%)

0.964 (+177%)

0.886 (+154%)

0.569 (+63%)

0.444 (+28%)

0.330 (−5%)

0.193 (−45%)

1.000 (+187%)

1.000 (+187%)

1.000 (+187%)

0.861 (+147%)

0.556 (+60%)

0.222 (−36%)

0.056 (−84%)

Acc

N/A

0.858

0.59

0.593

0.601

0.658

0.702

0.772

0.545

0.184

0.184

0.184

0.202

0.273

0.573

0.518

No true overlap

 

Dice

0

0

0.445

0.470

0.363

0.141

0.087

0.028

0

0.075

0.094

0.101

0

0

0

0

OF

0

0

0.911

0.809

0.489

0.149

0.1

0.039

0

1

1

0.765

0

0

0

0

X

0

0

0.294

0.331

0.288

0.134

0.1

0.039

0

0.039

0.049

0.054

0

0

0

0

Y

0

0

0.911

0.809

0.489

0.149

0.078

0.021

0

1

1

0.765

0

0

0

0