Table 2 Performance of GTRNet in predicting pathologic T stage across cohorts

From: Interpretable deep learning for multicenter gastric cancer T staging from CT images

Cohort

Accuracy (%)

AUC (95% CI)

Sensitivity

Specificity

PPV

NPV

(T1/T2/T3/T4)%

Training (n = 953)

90.1

0.98 (0.98-0.99)

93.8 / 83.8 / 84.9 / 97.9

97.7 / 94.6 / 95.2 / 99.3

93.4 / 83.5 / 85.6 / 97.9

97.9 / 94.7 / 95.0 / 99.3

Internal Test (n = 239)

89.9

0.97 (0.95-0.98)

86.7 / 98.3 / 83.3 / 91.7

99.9 /94.4 /94.4/ 97.8

99.9 / 85.3 / 83.3 / 93.2

95.7 / 99.4 / 94.4 / 97.2

External test set 1 (n = 360)

93.6

0.95 (0.93–0.97)

99.9 /97.8 /83.3 / 93.3

97.8 / 94.8 / 99.9 / 98.9

93.8 / 86.3 / 99.9 / 96.6

99.9 / 99.2 / 94.7 / 97.8

External test set 2 (n = 240)

86.7

0.91 (0.88-0.95)

85.0 / 93.3 / 86.7 /81.7

96.7 /93.9 / 95.0 /96.7

89.5 / 83.6 / 85.3 / 89.0

95.1 / 97.7 / 95.5 / 94.1

  1. AUC area under ROC, CI confidence interval, PPV positive predictive value, NPV negative predictive value.