Table 8.
Evaluation results for distinguishing Normal and PDAC to each feature set.
| Object | Feature set | TN | FP | FN | TP | SN (%) | SP (%) | PPV (%) | NPV (%) | ACC (%) |
|---|---|---|---|---|---|---|---|---|---|---|
| NEN | CNF | 26.50 | 6.30 | 5.50 | 25.70 | 82.82 | 80.32 | 81.07 | 82.50 | 81.56 |
| (1.58) | (2.11) | (1.58) | (2.11) | (4.94) | (6.60) | (5.17) | (4.22) | (3.95) | ||
|
| ||||||||||
| CLF | 27.30 | 12.30 | 4.70 | 19.70 | 85.32 | 61.57 | 69.38 | 81.72 | 73.44 | |
| (2.21) | (3.27) | (2.21) | (3.27) | (6.92) | (10.21) | (4.22) | (6.25) | (3.13) | ||
| Lumen | PLF | 29.30 | 2.70 | 2.70 | 29.30 | 91.57 | 91.57 | 91.99 | 91.88 | 91.56 |
| (1.77) | (2.00) | (1.77) | (2.00) | (5.52) | (6.26) | (5.45) | (4.70) | (3.14) | ||
| ALF | 27.50 | 3.60 | 4.50 | 28.40 | 85.94 | 88.75 | 88.96 | 86.36 | 87.35 | |
| (0.85) | (2.46) | (0.85) | (2.46) | (2.66) | (7.68) | (6.92) | (2.12) | (3.57) | ||
|
| ||||||||||
| CEF | 25.10 | 10.60 | 6.90 | 21.40 | 78.44 | 66.88 | 70.72 | 75.75 | 72.66 | |
| (1.66) | (2.84) | (1.66) | (2.84) | (5.20) | (8.86) | (4.97) | (3.99) | (3.84) | ||
| EN | PEF | 27.50 | 3.50 | 4.50 | 28.50 | 85.94 | 89.07 | 89.52 | 86.67 | 87.50 |
| (1.51) | (2.95) | (1.51) | (2.95) | (4.72) | (9.23) | (6.80) | (3.25) | (3.21) | ||
| AEF | 27.00 | 3.00 | 5.00 | 29.00 | 84.38 | 90.63 | 90.55 | 85.73 | 87.50 | |
| (2.05) | (1.89) | (2.05) | (1.89) | (6.42) | (5.89) | (5.01) | (4.53) | (1.47) | ||
|
| ||||||||||
| CDF | 27.30 | 12.30 | 4.70 | 19.70 | 85.32 | 61.57 | 69.38 | 81.72 | 73.44 | |
| (2.21) | (3.27) | (2.21) | (3.27) | (6.92) | (10.21) | (4.22) | (6.25) | (3.13) | ||
| Duct | 29.80 | 1.40 | 2.20 | 30.60 | 93.13 | 95.63 | 95.78 | 93.50 | 94.38 | |
| (1.40) | (1.51) | (1.40) | (1.51) | (4.37) | (4.71) | (4.34) | (3.80) | (2.35) | ||
| ADF | 27.50 | 3.60 | 4.50 | 28.40 | 85.94 | 88.75 | 88.96 | 86.36 | 87.35 | |
| (0.85) | (2.46) | (0.85) | (2.46) | (2.66) | (7.68) | (6.92) | (2.12) | (3.57) | ||
|
| ||||||||||
| CTF | 26.90 | 11.70 | 5.10 | 20.30 | 84.06 | 63.44 | 70.34 | 80.92 | 73.75 | |
| (2.28) | (3.74) | (2.28) | (3.74) | (7.13) | (11.70) | (5.32) | (6.11) | (3.44) | ||
| Tissue | PTF | 29.80 | 2.50 | 2.20 | 29.50 | 93.13 | 92.19 | 92.74 | 93.26 | 92.66 |
| (1.32) | (2.22) | (1.32) | (2.22) | (4.11) | (6.95) | (6.15) | (3.76) | (3.21) | ||
| ATF | 27.50 | 3.60 | 4.50 | 28.40 | 85.94 | 88.75 | 88.96 | 86.36 | 87.35 | |
| (0.85) | (2.46) | (0.85) | (2.46) | (2.66) | (7.68) | (6.92) | (2.12) | (3.57) | ||
TP (true positive): the number of PDACs that are correctly classified as PDACs.
FP (false positive): the number of Normals that are incorrectly classified as PDACs.
FN (false negative): the number of PDACs that are incorrectly classified as Normals.
TN (true negative): the number of Normals that are correctly classified as Normals.