Skip to main content

Table 3 Diagnostic performance of each pancreas CT protocol in predicting margin-negative (R0) resection

From: Pancreas CT assessment for pancreatic ductal adenocarcinoma resectability: effect of tube voltage and slice thickness on image quality and diagnostic performance

  

Standard CT

High-resolution CT

P-value

Reader 1

AUC

0.714 (0.593, 0.816)

0.739 (0.619, 0.837)

0.646

Sensitivity

76.5% (39/51)

72.5% (37/51)

0.500

Specificity

50.0% (9/18)

72.2% (13/18)

0.219

Accuracy

69.6% (48/69)

72.5% (50/69)

0.727

Reader 2

AUC

0.702 (0.580, 0.806)

0.728 (0.607, 0.828)

0.682

Sensitivity

86.3% (44/51)

82.4% (42/51)

0.500

Specificity

33.3% (6/18)

38.9% (7/18)

0.999

Accuracy

72.5% (50/69)

71.0% (49/69)

0.999

Reader 3

AUC

0.680 (0.557, 0.787)

0.714 (0.593, 0.816)

0.359

Sensitivity

74.5% (38/51)

64.7% (33/51)

0.125

Specificity

44.4% (8/18)

72.2% (13/18)

0.063

Accuracy

66.7% (46/69)

66.7% (46/69)

0.999

Pooled analysis

AUC

0.699 (0.582, 0.816)

0.727 (0.605, 0.849)

0.128

Sensitivity

79.1% (66.8%, 91.3%)

73.2% (56.7%, 89.7%)

0.096

Specificity

42.6% (21.0%, 64.2%)

61.1% (24.9%, 97.4%)

0.081

Accuracy

69.6% (60.3%, 78.8%)

70.0% (61.4%, 83.4%)

0.834

  1. AUC Area under the receiver operating characteristic curve