Multiparameter Analysis Using ¹⁸F-FDG PET/CT in the Differential Diagnosis of Pancreatic Cystic Neoplasms

Table 3

Comparison of the combination with conventional and texture parameters to only conventional parameters with IDI and NRI.

Variable	AUC	Sensitivity (%)	Specificity (%)	Youden index		IDI	95% CI	P	NRI	95% CI
C + T	0.810	85.7	77.8	0.635	＜0.001	0.236	0.095–0.377	0.001	0.434	0.030–0.838	0.035
Only C	0.788	71.4	77.8	0.625	＜0.001

C + T : conventional metabolic parameters plus texture parameters; only C : only conventional metabolic parameters; AUC : area under the curve; IDI : integrated discrimination improvement; NRI : net reclassification improvement (categorical); 95% CI: 95% confidence interval.