Table V.
Performance evaluation of the CMACS framework on the MMWHS CTA dataset using two different atlas libraries. Quantitative Dice index, 3D Hausdorff distance (HD) and mean surface distance (MSD) are calculated between the automatic and manual segmentation using two atlas libraries. Results are expressed as the median and 95% confidence interval.
| n=40 | Atlas | LV | LA | LVM | PA | RA | RV | AA | All |
|---|---|---|---|---|---|---|---|---|---|
| Dice | NHLBI | 0.89 [0.78, 0.94] | 0.91 [0.81, 0.95] | 0.80 [0.68, 0.86] | 0.73 [0.50, 0.89] | 0.85 [0.66, 0.90] | 0.84 [0.61, 0.89] | 0.93 [0.86, 0.96] | 0.85 [0.62, 0.95] |
| MMWHS | 0.88 [0.77, 0.93] | 0.92 [0.84, 0.95] | 0.83 [0.72, 0.88] | 0.80 [0.53, 0.90] | 0.84 [0.60, 0.91] | 0.86† [0.73, 0.91] | 0.93 [0.84, 0.96] | 0.86 [0.64, 0.94] | |
| MSD (mm) | NHLBI | 1.46† [1.01, 2.72] | 1.28 [0.80, 2.63] | 1.51 [1.01, 3.10] | 1.67 [0.86, 4.24] | 2.21 [1.51, 3.84] | 2.31 [1.64, 3.92] | 0.71 [0.38, 1.38] | 1.65 [0.62, 3.59] |
| MMWHS | 1.66 [1.16, 2.98] | 1.15 [0.83, 2.28] | 1.17† [0.73, 2.10] | 1.74 [1.01, 3.47] | 2.13 [1.41, 4.44] | 1.68† [1.25, 3.39] | 0.78 [0.43, 1.54] | 1.56 [0.65, 3.36] | |
| HD (mm) | NHLBI | 8.88 [5.79, 12.4] | 11.4 [6.93, 16.8] | 11.4 [7.71, 17.5] | 14.0 [5.79, 25.7] | 13.33 [8.04, 25.9] | 12.0 [7.13, 27.8] | 4.52† [2.80, 8.55] | 11.4 [4.0, 25.6] |
| MMWHS | 8.43 [6.38, 14.0] | 8.91† [5.78, 17.1] | 8.92 [5.07, 19.9] | 7.71† [4.10, 14.0] | 11.9 [6.93, 23.6] | 11.0 [6.93, 25.7] | 6.67 [4.10, 11.5] | 9.46† [5.00, 22.7] |
indicates significantly better performance in a higher Dice, a lower HD, or a lower MSD (p<0.05).