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Table 2 Performance of radiomics signature with features extracted from tumor and peritumoral regions of interest

From: Intra- and peri-tumoral MRI radiomics features for preoperative lymph node metastasis prediction in early-stage cervical cancer

Models

Training sets

Testing sets

AUC (95% CI)

ACC

SEN

SPE

AUC (95% CI)

ACC

SEN

SPE

T2WI

        

 Tumor

0.841 (0.779–0.904)

0.791

0.778

0.818

0.820 (0.715–0.926)

0.760

0.706

0.875

 Peritumoral 3 mm

0.775 (0.702–0.847)

0.733

0.684

0.836

0.786 (0.669–0.903)

0.720

0.647

0.875

 Peritumoral 5 mm

0.795 (0.724–0.866)

0.762

0.761

0.764

0.783 (0.664–0.903)

0.720

0.783

0.833

 Peritumoral 7 mm

0.795 (0.727–0.862)

0.762

0.798

0.680

0.755 (0.624–0.886)

0.787

0.898

0.577

DWI

        

 Tumor

0.791 (0.718–0.865)

0.773

0.829

0.650

0.771 (0.664–0.879)

0.680

0.608

0.833

 Peritumoral 3 mm

0.810 (0.743–0.876)

0.738

0.727

0.764

0.734 (0.623–0.846)

0.613

0.451

0.958

 Peritumoral 5 mm

0.745 (0.666–0.825)

0.750

0.812

0.618

0.725 (0.605–0.844)

0.600

0.451

0.917

 Peritumoral 7 mm

0.803 (0.733–0.873)

0.720

0.65

0.873

0.696 (0.567–0.826)

0.720

0.725

0.708

 T + 3 mm T2WI

0.851 (0.790–0.912)

0.797

0.795

0.800

0.837 (0.733–0.940)

0.813

0.784

0.875

 T + 5 mm T2WI

0.865 (0.807–0.923)

0.780

0.701

0.945

0.818 (0.710–0.926)

0.733

0.647

0.917

 T + 7 mm T2WI

0.830 (0.765–0.896)

0.750

0.667

0.927

0.811 (0.702–0.921)

0.747

0.706

0.833

 T + 3 mm DWI

0.784 (0.710–0.860)

0.744

0.752

0.727

0.768 (0.659–0.877)

0.693

0.627

0.833

 T + 5 mm DWI

0.781 (0.705–0.856)

0.721

0.786

0.691

0.767 (0.657–0.877)

0.707

0.647

0.833

 T + 7 mm DWI

0.779 (0.703–0.855)

0.750

0.761

0.727

0.765 (0.655–0.874)

0.707

0.647

0.833

 T (T2WI) + T(DWI)

0.867 (0.810–0.924)

0.802

0.829

0.746

0.836 (0.741–0.931)

0.760

0.706

0.875

 T + T + 3 mm T2WI

0.868 (0.809–0.915)

0.800

0.803

0.817

0.846 (0.753–0.940)

0.808

0.784

0.833

  1. T2WI: T2 weighted imaging; DWI: diffusion-weighted imaging; AUC: area under curer; ACC: accuracy; SEN: sensitivity; SPE: specificity; T + xmm: tumor plus peritumoral x mm expansion;