Table 6.

Results of Varying Generator Network Depth: Number of Convolutions. The influence of varying the number of convolutions during down-sampling in the generator networks of both the cGAN and U-Net was assessed. Highest DSCs achieved for each tissue are in bold.

Generator Network Depth Results – Number of Convolutions during Down-Sampling
cGAN
Down Convs	F Bone	T Bone	P Bone	F Cartilage	T Cartilage	P Cartilage	VM Muscle	GM Muscle	ACL	PCL
5	0.928 ± 0.006	0.929 ± 0.006	0.893 ± 0.029	0.721 ± 0.029	0.751 ± 0.039	0.838 ± 0.042	0.049 ± 0.069	0.000 ± 0.000	0.622 ± 0.042	0.286 ± 0.189
7	0.889 ± 0.023	0.921 ± 0.026	0.928 ± 0.002	0.764 ± 0.047	0.624 ± 0.039	0.846 ± 0.057	0.171 ± 0.226	0.167 ± 0.236	0.626 ± 0.041	0.289 ± 0.408
9	0.918 ± 0.011	0.948 ± 0.018	0.928 ± 0.002	0.812 ± 0.002	0.748 ± 0.042	0.863 ± 0.043	0.113 ± 0.085	0.000 ± 0.000	0.577 ± 0.020	0.073 ± 0.103
U-Net
Down Convs	F Bone	T Bone	P Bone	F Cartilage	T Cartilage	P Cartilage	VM Muscle	GM Muscle	ACL	PCL
5	0.969 ± 0.002	0.952 ± 0.016	0.919 ± 0.022	0.887 ± 0.018	0.823 ± 0.001	0.888 ± 0.031	0.000 ± 0.000	0.000 ± 0.000	0.631 ± 0.125	0.544 ± 0.249
7	0.964 ± 0.003	0.956 ± 0.005	0.921 ± 0.008	0.874 ± 0.032	0.787 ± 0.044	0.869 ± 0.029	0.000 ± 0.000	0.000 ± 0.000	0.539 ± 0.160	0.592 ± 0.120
9	0.972 ± 0.006	0.960 ± 0.001	0.941 ± 0.010	0.886 ± 0.007	0.834 ± 0.010	0.890 ± 0.034	0.000 ± 0.000	0.000 ± 0.000	0.643 ± 0.153	0.641 ± 0.008

Training and testing were performed on the AMROA training and testing datasets, respectively.

DSCs are presented as mean ± standard deviation.

Abbreviations: F Bone – femoral bone, T Bone – tibial bone, P Bone – patellar bone, F Cartilage – femoral cartilage, T Cartilage – tibial cartilage, P Cartilage – patellar cartilage, VM Muscle - vastus medialis muscle, GM Muscle – medial head of gastrocnemius medialis muscle, ACL – anterior cruciate ligament, PCL – posterior cruciate ligament, DSC - Sørensen–Dice similarity coefficient.