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Egyptian Journal of Radiology and Nuclear Medicine

Table 7 Sensitivity, specificity, accuracy, PPV, and NPV of PET/CT in detection of distant metastasis of G3, n = 18 melanoma patients

From: PET/CT in restaging, prognosis, and recurrence in patients with malignant melanoma

 

Malignant melanoma

Chi-square

TP

TN

FP

FN

Total

χ2

FEP value

PET/CT

n

15

2

1

0

18

11.224*

0.002*

%

83.33

5.55

11.11

0

100

ROC

PET/CT

Sens

Spec

PPV

NPV

Accuracy

 

100

66.66

93.75

100

94.44

  1. TP true +ve, FN false −ve, TN true −ve, FP false +ve, PPV positive predictive value, NPV negative predictive value, χ2 chi-square test, FE Fisher Exact, P P value for comparing between the two studied groups
  2. *Statistically significant at P ≤ 0.05
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