TABLE 1.
Overall quantitative results achieved by the proposed, the mask R-CNN, and the No-AG methods.
| Organ | Method | DSC | HD95 (mm) | MSD (mm) | RMS (mm) |
|---|---|---|---|---|---|
| Brain Stem | Proposed | 0.89±0.06 | 2.91±1.35 | 0.98±0.57 | 1.43±0.70 |
| Mask R-CNN | 0.88±0.06 | 3.07±1.36 | 1.11±0.57 | 1.54±0.70 | |
| No-AG | 0.86±0.06 | 3.91±1.45 | 1.37±0.58 | 1.88±0.75 | |
| Left Cochlea | Proposed | 0.68±0.14 | 1.80±0.76 | 0.68±0.39 | 0.96±0.41 |
| Mask R-CNN | 0.66±0.14 | 1.88±0.79 | 0.73±0.37 | 1.00±0.40 | |
| No-AG | 0.64±0.14 | 2.66±1.10 | 1.01±0.44 | 1.34±0.49 | |
| Right Cochlea | Proposed | 0.68±0.18 | 1.91±0.85 | 0.71±0.41 | 1.02±0.47 |
| Mask R-CNN | 0.63±0.17 | 2.14±0.79 | 0.83±0.36 | 1.13±0.41 | |
| No-AG | 0.61±0.17 | 2.92±0.96 | 1.05±0.39 | 1.46±0.53 | |
| Left Eye | Proposed | 0.89±0.07 | 2.08±1.06 | 0.79±0.44 | 1.10±0.52 |
| Mask R-CNN | 0.88±0.06 | 2.13±0.99 | 0.86±0.41 | 1.15±0.49 | |
| No-AG | 0.86±0.06 | 3.00±1.16 | 1.06±0.44 | 1.45±0.58 | |
| Right Eye | Proposed | 0.89±0.05 | 2.04±0.74 | 0.80±0.30 | 1.10±0.36 |
| Mask R-CNN | 0.88±0.05 | 2.00±0.69 | 0.83±0.30 | 1.11±0.34 | |
| No-AG | 0.86±0.05 | 2.95±1.06 | 1.08±0.34 | 1.53±0.46 | |
| Larynx | Proposed | 0.90±0.07 | 3.73±1.84 | 1.13±0.71 | 1.72±0.91 |
| Mask R-CNN | 0.88±0.07 | 3.99±1.88 | 1.34±0.73 | 1.92±0.92 | |
| No-AG | 0.86±0.07 | 4.76±1.99 | 1.56±0.73 | 2.26±0.99 | |
| Left Lens | Proposed | 0.67±0.18 | 1.75±0.83 | 0.68±0.46 | 0.96±0.48 |
| Mask R-CNN | 0.65±0.16 | 1.84±0.76 | 0.74±0.39 | 1.00±0.42 | |
| No-AG | 0.63±0.16 | 2.52±1.02 | 0.98±0.41 | 1.40±0.51 | |
| Right Lens | Proposed | 0.67±0.10 | 1.70±0.46 | 0.62±0.18 | 0.90±0.19 |
| Mask R-CNN | 0.66±0.10 | 1.77±0.47 | 0.67±0.19 | 0.94±0.20 | |
| No-AG | 0.64±0.10 | 2.50±0.80 | 0.80±0.22 | 1.22±0.28 | |
| Mandible | Proposed | 0.82±0.10 | 3.62±2.26 | 1.08±0.60 | 1.84±1.02 |
| Mask R-CNN | 0.79±0.11 | 4.02±2.48 | 1.30±0.67 | 2.05±1.09 | |
| No-AG | 0.77±0.11 | 4.93±2.53 | 1.50±0.67 | 2.39±1.21 | |
| Optic Chiasm | Proposed | 0.61±0.14 | 3.94±2.03 | 1.06±0.63 | 1.72±0.89 |
| Mask R-CNN | 0.56±0.15 | 4.21±2.13 | 1.21±0.68 | 1.87±0.94 | |
| No-AG | 0.54±0.15 | 4.96±2.23 | 1.47±0.66 | 2.24±1.00 | |
| Left Optic Nerve | Proposed | 0.67±0.11 | 3.25±2.11 | 0.91±0.38 | 1.51±0.69 |
| Mask R-CNN | 0.62±0.10 | 3.37±1.83 | 1.04±0.35 | 1.57±0.61 | |
| No-AG | 0.60±0.10 | 4.14±1.87 | 1.28±0.41 | 1.96±0.65 | |
| Right Optic Nerve | Proposed | 0.68±0.11 | 2.96±1.32 | 0.87±0.29 | 1.50±0.50 |
| Mask R-CNN | 0.61±0.10 | 2.97±1.10 | 1.02±0.27 | 1.56±0.45 | |
| No-AG | 0.61±0.09 | 4.14±3.43 | 1.30±0.48 | 1.96±0.99 | |
| Oral Cavity | Proposed | 0.92±0.07 | 4.56±3.89 | 1.40±1.45 | 2.14±1.94 |
| Mask R-CNN | 0.90±0.07 | 5.10±3.90 | 1.74±1.49 | 2.47±1.98 | |
| No-AG | 0.88±0.07 | 5.87±3.95 | 2.03±1.47 | 2.77±2.02 | |
| Left Parotid | Proposed | 0.85±0.06 | 3.75±1.15 | 1.35±0.50 | 1.88±0.62 |
| Mask R-CNN | 0.83±0.06 | 3.90±1.08 | 1.53±0.47 | 2.00±0.57 | |
| No-AG | 0.81±0.06 | 4.70±1.24 | 1.75±0.50 | 2.31±0.62 | |
| Right Parotid | Proposed | 0.86±0.05 | 3.86±1.42 | 1.35±0.52 | 2.12±1.43 |
| Mask R-CNN | 0.83±0.05 | 4.10±1.41 | 1.58±0.51 | 2.26±1.36 | |
| No-AG | 0.81±0.05 | 4.86±1.55 | 1.79±0.53 | 2.60±1.43 | |
| Pharynx | Proposed | 0.80±0.13 | 3.16±2.52 | 0.91±0.87 | 1.54±1.23 |
| Mask R-CNN | 0.76±0.13 | 3.36±2.56 | 1.05±0.89 | 1.66±1.24 | |
| No-AG | 0.74±0.13 | 4.41±2.45 | 1.24±0.90 | 1.90±1.29 | |
| Spinal Cord | Proposed | 0.77±0.15 | 8.18±8.27 | 1.78±1.39 | 3.37±2.92 |
| Mask R-CNN | 0.73±0.15 | 8.41±8.11 | 1.97±1.39 | 3.51±2.86 | |
| No-AG | 0.72±0.15 | 9.13±8.08 | 2.18±1.40 | 3.74±2.89 |