Table 2. Evaluation of automatic fetal brain segmentation.
We report mean (standard deviation) for the Dice score (DSC) in percentages and the Hausdorff distance at 95% (HD95) in millimeters for the seven tissue types. WM: white matter, Vent: ventricular system, Cer: cerebellum, CSF: cerebrospinal fluid, ECSF: extra-axial CSF, CGM: cortical grey matter, DGM: deep grey matter, BS: brainstem.
| Atlas | Cohort | Metric | WM | Vent | Cer | ECSF | CGM | DGM | BS |
|---|---|---|---|---|---|---|---|---|---|
| Normal 19 | Normal | DSC | 87.1
(2.3) |
83.8
(4.4) |
86.9
(3.7) |
86.7
(2.3) |
67.9
(5.3) |
82.7
(3.2) |
81.7
(3.2) |
| HD95 | 1.9
(0.6) |
1.2
(0.2) |
1.6
(0.4) |
1.2
(0.4) |
1.5
(0.6) |
2.7
(0.7) |
2.5
(0.5) |
||
| Normal 19 | Spina Bifida | DSC | 69.4
(16.4) |
79.9
(8.0) |
50.2
(31.3) |
49.6
(35.7) |
41.7
(21.6) |
69.6
(14.5) |
62.2
(21.2) |
| HD95 | 4.3
(2.2) |
3.5
(2.8) |
5.8
(4.2) |
10.3
(9.8) |
4.1
(2.6) |
4.3
(2.5) |
3.9
(2.7) |
||
| Spina Bifida | Spina Bifida | DSC | 80.6
(6.4) |
84.0
(10.1) |
69.8
(15.6) |
54.9
(26.3) |
48.8
(15.9) |
77.2
(5.1) |
71.2
(10.9) |
| HD95 | 3.4
(1.6) |
2.0
(1.4) |
2.7
(0.8) |
9.6
(9.1) |
3.2
(1.7) |
3.0
(0.7) |
3.1
(1.2) |