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Table 5 ROC curve analysis for prediction of tumor type by ADC ratio

From: Diagnostic accuracy of apparent diffusion coefficient ratio in distinguishing common pediatric CNS posterior fossa tumors

ADC ratio

Cutoff

Sensitivity (%)

Specificity (%)

AUC

95% CI

P value

Astrocytoma

> 1.7

87.5

93.3

0.85

0.61 to 0.97

0.002*

Ependymoma

≤ 1.6

87.8

99.5

0.85

0.61 to 0.97

0.002*

Medulloblastoma

≤ 1.2

100

90.0

0.99

0.83 to 1.0

< 0.001*

  1. AUC area under the curve
  2. *Significant at P < 0.05