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Table 3 AUCs, thresholds, sensitivities, and specificities for distinguishing the poorly differentiated group from the non-poorly differentiated group in AP and VP

From: Spectral CT - a new supplementary method for preoperative assessment of pathological grades of esophageal squamous cell carcinoma

Parameter

AP

VP

AUC

Threshold value

Sensitivity

Specificity

AUC

Threshold value

Sensitivity

Specificity

VMI40keV

0.612

140.30

75.6%

47.7%

0.725

204.36

81.7%

56.9%

IC

0.616

13.70

76.8%

45.9%

0.729

21.08

82.9%

56.9%

Eff-Z

0.619

8.44

76.8%

45.9%

0.729

8.84

79.3%

56.9%

λHU

0.617

2.64

74.4%

49.5%

0.723

3.97

82.9%

56.9%

  1. AUC Area under the ROC curve, AP Arterial phase, VP Venous phase, VMI Virtual monoenergetic image, IC Iodine concentration, Eff-Z Effective atomic number; λHU, the slope of the spectral curve
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BMC Medical Imaging

ISSN: 1471-2342

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