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Table 3 Results of receiver operating characteristic (ROC) curves for quantitative data

From: Differentiation of renal angiomyolipoma without visible fat from small clear cell renal cell carcinoma by using specific region of interest on contrast-enhanced CT: a new combination of quantitative tools

Parameter

AUC

95% CI

Lower bound

Upper bound

AVT_PCP (1)

0.758

0.659

0.858

AVT_CMP (1)

0.644

0.535

0.752

NEV_CMP (1)

0.684

0.579

0.789

RER_CMP (1)

0.697

0.596

0.799

RER_NP (1)

0.638

0.531

0.744

AVT_PCP (2)

0.744

0.635

0.854

AVT_CMP (2)

0.739

0.641

0.836

NEV_CMP (2)

0.760

0.667

0.853

RER_CMP (2)

0.876

0.809

0.942

AVT_NP (2)

0.639

0.511

0.767

NEV_NP (2)

0.665

0.535

0.795

RER_NP (2)

0.849

0.773

0.924

NEV_EP (2)

0.634

0.512

0.756

RER_EP (2)

0.703

0.585

0.820

HDT_CMP

0.837

0.758

0.915

SHR_CMP

0.800

0.710

0.891

HDT_NP

0.721

0.611

0.831

SHR_NP

0.645

0.532

0.758

HDT_EP

0.726

0.616

0.835

SHR_EP

0.688

0.577

0.798

  1. AUC: area under curve, CI: confidence interval
  2. PCP: pre-contrast phase, CMP: corticomedullary phase, NP: nephrographic phase, EP: excretory phase
  3. AVT: attenuation value of tumor, NEV: net enhancement value, RER: relative enhancement ratio, HDT: heterogeneous degree of tumor, SHR: standardized heterogeneous ratio
  4. (1): ROI (1), (2): ROI (2)
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Cancer Imaging

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