Table 1 Results and formulations of quantitative contrast metrics and quantitative segmentation 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

 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

 Error distribution per slice