Relationship between medial meniscus extrusion and cartilage measurements in the knee by fully automatic three-dimensional MRI analysis

Table 2 Automatic segmentation accuracy

	DSC (average ± SD)
Subregions	1st test	2nd test	3rd test	Total
Femoral bone	0.985 ± 0.004	0.985 ± 0.007	0.983 ± 0.004	0.985 ± 0.005
Tibial bone	0.981 ± 0.008	0.978 ± 0.013	0.983 ± 0.002	0.980 ± 0.009
Femoral cartilage	0.905 ± 0.024	0.913 ± 0.034	0.916 ± 0.013	0.911 ± 0.024
Tibial cartilage	0.893 ± 0.072	0.868 ± 0.119	0.914 ± 0.009	0.892 ± 0.072
Medial meniscus	0.921 ± 0.012	0.906 ± 0.020	0.922 ± 0.014	0.916 ± 0.016
Lateral meniscus	0.893 ± 0.038	0.905 ± 0.033	0.875 ± 0.053	0.891 ± 0.041
ROI of femoral subchondral bone	0.905 ± 0.016	0.904 ± 0.019	0.906 ± 0.017	0.905 ± 0.016
ROI of medial/lateral tibia plateau	0.889 ± 0.036	0.884 ± 0.055	0.892 ± 0.022	0.888 ± 0.037

DSC Dice similarly coefficient, ROI Region of interest
*DSC averages and SDs were calculated for the first to third tests with 5 subject data, for a total of 15 subject data

ISSN: 1471-2474