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. 2017 Apr 21;23(15):2743–2749. doi: 10.3748/wjg.v23.i15.2743

Table 3.

Performance of 18-fluoro-2-deoxyglucose positron emission tomography for esophageal cancer screening

	Esophageal cancer(+) (n = 28)	Esophageal cancer(-) (n = 14762)	PPV, NPV
FDG-PET positive (n = 51)	1	50	PPV 2.0%
FDG-PET positive (n = 51)	1	50	(95%CI: 0.0-10.4)
FDG-PET negative (n = 14739)	27	14712	NPV 99.8%
FDG-PET negative (n = 14739)	27	14712	(95%CI: 99.7-99.9)
Sensitivity, specificity	Sensitivity 3.6%	Specificity 99.7%
Sensitivity, specificity	(95%CI: 0.1-18.3)	(95%CI: 99.6-99.7)

FDG-PET: 18-fluoro-2-deoxyglucose positron emission tomography; NPV: Negative predictive value; PPV: Positive predictive value.