Metrics | T1w | CE-T1w | FLAIR |
---|---|---|---|
Quantitative contrast metrics | |||
Signal-to-noise ratio \(\frac{mean\left( RO{I}_{values}\right)}{std\left( backgroun{d}_{values}\right)}\) | 13.73 ± 4.89 | 23.77 ± 12.02 | 13.09 ± 6.15 |
Contrast-to-noise ratio \(\frac{mean\left( RO{I}_{values}\right)- mean\left( backgroun{d}_{values}\right)}{std\left( backgroun{d}_{values}\right)}\) | 7.44 ± 2.87 | 18.49 ± 9.57 | 10.77 ± 5.38 |
Quantitative segmentation metrics | |||
Dice similarity coefficient \(\frac{2\ast TP}{2\ast TP+ FP+ FN}\) | 0.67 ± 0.05 | - | 0.68 ± 0.05 |
Absolute volume [mL] | 3.073 ± 0.563 mL | 2.984 ± 0.506 mL | 3.787 ± 0.679 mL |
Percentage volume difference \(100\ast \frac{\left( Volum{e}_{segm}- Volum{e}_{ref}\right)}{Volum{e}_{ref}}\left[\%\right]\) | 3.52 ± 12.61 | - | 28.02 ± 19.02 |
Absolute percentage volume difference \(100\ast \frac{\mid Volum{e}_{segm}- Volum{e}_{ref}\mid }{Volum{e}_{ref}}\left[\%\right]\) | 10.57 ± 7.60 | - | 28.43 ± 18.40 |
Pearson’ correlation | 0.77 | - | 0.67 |
Spatial variability metrics | |||
Error distribution per slice | \(100\ast \frac{\left( VoxelSlice{(i)}_{segm}- VoxelSlice{(i)}_{ref}\right)}{Volum{e}_{ref}}\left[\%\right]\) |