| Positive | Negative | Sensitivity | Specificity | PPV | NPV | Accuracy | ||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
TP | FP | TN | FN | Value | 95% CI | Value | 95% CI | Value | 95% CI | Value | 95% CI | Value | 95% CI | ||
LNs (16 regions) | 2 × Cervical | 26 | 13 | 44 | 9 | 74 | 57–88 | 77 | 64–87 | 67 | 54–77 | 83 | 73–90 | 76 | 66–84 |
Mediastinal | 10 | 5 | 21 | 10 | 50 | 27–73 | 81 | 61–93 | 67 | 45–83 | 68 | 57–77 | 67 | 52–80 | |
2 × supra-clavicular | 8 | 7 | 67 | 10 | 44 | 22–69 | 91 | 81–96 | 53 | 32–73 | 87 | 81–91 | 82 | 72–89 | |
2 × axillary | 27 | 18 | 42 | 5 | 84 | 67–95 | 70 | 57–81 | 60 | 50–69 | 89 | 79–95 | 75 | 65–83 | |
Para-aortic | 16 | 1 | 27 | 2 | 89 | 65–98 | 96 | 82–100 | 94 | 70–99 | 93 | 78–98 | 93 | 82–99 | |
Porta-hepatis | 9 | 0 | 36 | 1 | 90 | 56–100 | 100 | 90–100 | 100 |  | 97 | 85–100 | 98 | 88–100 | |
Mesenteric | 8 | 3 | 32 | 3 | 73 | 39–94 | 91 | 77–98 | 73 | 46–89 | 91 | 80–97 | 87 | 74–95 | |
2 × iliac | 19 | 5 | 63 | 5 | 79 | 58–93 | 93 | 84–98 | 79 | 61–90 | 93 | 85–97 | 89 | 81–95 | |
2 × femoral | 12 | 9 | 71 | 0 | 100 | 74–100 | 89 | 80–95 | 57 | 42–71 | 100 |  | 90 | 82–95 | |
2 × inguinal | 19 | 18 | 54 | 1 | 95 | 75–100 | 75 | 63–84 | 51 | 41–61 | 98 | 89–100 | 79 | 70–87 | |
Total LNs | 154 | 79 | 457 | 46 | 77 | 71–83 | 85 | 82–88 | 66 | 61–71 | 91 | 88–93 | 83 | 80–86 | |
Skeletal system (63 regions) | Skull | 11 | 1 | 32 | 2 | 85 | 55–98 | 97 | 84–100 | 92 | 61–99 | 94 | 82–98 | 93 | 82–99 |
2 × clavicle | 26 | 8 | 53 | 5 | 84 | 66–95 | 87 | 76–94 | 76 | 63–86 | 91 | 83–96 | 86 | 77–92 | |
Sternum | 14 | 3 | 26 | 3 | 82 | 57–96 | 90 | 73–98 | 82 | 61–93 | 90 | 75–96 | 87 | 74–95 | |
2 × humerus | 33 | 6 | 49 | 4 | 89 | 75–97 | 89 | 87–96 | 85 | 72–92 | 92 | 83–97 | 89 | 81–95 | |
24 × ribs | 339 | 19 | 718 | 28 | 92 | 89–95 | 97 | 96–98 | 95 | 92–97 | 96 | 95–97 | 96 | 94–99 | |
7 × cervical vertebrae | 76 | 17 | 210 | 19 | 80 | 71–88 | 93 | 88–96 | 82 | 74–88 | 92 | 88–94 | 89 | 85–92 | |
12 × dorsal vertebrae | 176 | 19 | 334 | 23 | 88 | 83–93 | 95 | 92–99 | 90 | 86–94 | 94 | 91–96 | 92 | 90–94 | |
5 × lumbar vertebrae | 70 | 16 | 133 | 11 | 86 | 77–93 | 89 | 83–94 | 81 | 73–88 | 92 | 87–95 | 88 | 83–92 | |
Sacrum | 15 | 4 | 25 | 2 | 88 | 64–99 | 86 | 68–96 | 79 | 60–91 | 93 | 77–98 | 87 | 74–95 | |
2 × iliac bones | 40 | 9 | 38 | 5 | 89 | 76–96 | 81 | 67–91 | 82 | 71–89 | 88 | 77–95 | 85 | 76–91 | |
2 × pubic bones | 12 | 1 | 71 | 8 | 60 | 36–81 | 99 | 93–100 | 92 | 62–99 | 90 | 84–94 | 90 | 82–95 | |
2 × femurs | 35 | 11 | 43 | 3 | 92 | 79–98 | 80 | 66–89 | 76 | 65–84 | 93 | 83–98 | 85 | 76–91 | |
2 × tibias | 20 | 3 | 66 | 3 | 87 | 66–97 | 96 | 88–99 | 87 | 69–95 | 96 | 88–98 | 93 | 86–98 | |
Total skeletal metastases | 867 | 117 | 1798 | 116 | 88 | 86–90 | 94 | 93–95 | 88 | 86–90 | 94 | 93–95 | 92 | 91–93 | |
Organs | Brain | 7 | 2 | 35 | 2 | 78 | 40–97 | 95 | 82–99 | 78 | 47–93 | 95 | 84–98 | 91 | 79–98 |
Lung | 14 | 3 | 21 | 8 | 64 | 41–83 | 88 | 68–97 | 82 | 61–93 | 72 | 60–82 | 76 | 61–87 | |
Liver | 16 | 0 | 30 | 0 | 100 | 97–100 | 100 | 88–100 | 100 |  | 100 |  | 100 | 92–100 | |
Others | 11 | 1 | 30 | 4 | 73 | 45–92 | 97 | 83–100 | 92 | 61–99 | 88 | 76–95 | 89 | 76–96 | |
Total organ metastasis | 48 | 6 | 116 | 14 | 77 | 65–87 | 95 | 90–98 | 89 | 78–95 | 89 | 84–93 | 89 | 84–93 | |
Total |  | 1069 | 202 | 2371 | 176 | 86 | 84–88 | 92 | 91–93 | 84 | 82–86 | 93 | 92–94 | 90 | 89–91 |