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Table 3 Mean Hausdorff distances [mm] for NMF without regularization, with spatial regularization, with spatial and sparse regularization but without morphological post-processing, with spatial and sparse regularization on the cMRI data only, and with spatial and sparse regularization on the full MP-MRI dataset

From: Semi-automated brain tumor segmentation on multi-parametric MRI using regularized non-negative matrix factorization

 

Active tumor [mm]

  

Tumor core [mm]

  

Whole tumor [mm]

  
 

25 th prcntile

Mean

75 th prcntile

25 th prcntile

Mean

75 th prcntile

25 th prcntile

Mean

75 th prcntile

\(\mathbf {NMF_{\text {no\_reg}}}\)

3.3

6.9

8.1

3.1

7.9

9.7

3.8

8.6

10.6

N M F spatial

3.7

7.1

8.2

3.2

7.9

9.5

3.3

8.4

10.4

\(\mathbf {NMF_{\text {no\_postproc}}}\)

21.4

26.6

33.2

24.5

29.3

35.6

23.8

28.9

33.7

N M F cMRI

4.2

7.4

8.2

5.6

9.1

10.5

5.2

14.1

17.9

\(\mathbf {NMF_{\text {spatial\_sparse}}}\)

2.7

6.1

6.7

2.7

7.4

9.2

3.1

8.2

10.1

  1. For each tissue class, the first column reports the mean of the 25th percentile Hausdorff distance across all patients, the second column the mean of the mean Hausdorff distance across all patients and the third column the mean of the 75th percentile Hausdorff distance