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Table 3 ROC analysis of TRG and pCR classification models

From: Evaluating treatment response to neoadjuvant chemoradiotherapy in rectal cancer using various MRI-based radiomics models

  TRG pCR
AUC 95% CI Sensitivity (%) Specificity (%) AUC 95% CI Sensitivity (%) Specificity (%)
LASSO
 LR 0.734 0.643–0.813 48.4 91.5 0.801 0.696–0.882 64.3 84.6
 RF 0.943 0.883–0.978 90.3 92.7 0.912 0.827–0.964 78.6 92.3
 DT 0.838 0.757–0.901 87.1 80.5 0.870 0.775–0.935 78.6 95.4
 KNN 0.777 0.689–0.850 51.6 93.9 0.945 0.870–0.984 85.7 98.5
PCA
 LR 0.761 0.697–0.828 100 0.0 0.597 0.552–0.642 54.0 45.0
 RF 0.930 0.849–1.000 90.3 40.0 0.693 0.556–0.830 54.0 35.0
 DT 0.633 0.59–0.676 73.3 0.0 0.666 0.570–0.762 40.0 63.3
 KNN 0.840 0.788–0.892 100 0.0 0.712 0.557–0.867 78.7 56.7