Spleen Stiffness for Predicting Varices Needing Treatment: Comparison between Two Different Elastography Techniques (Point vs. 2D-SWE)

Table 2

SS optimal cut-off values and rule-out and rule-in cut-off values for predicting VNT.

Optimal cut-off values
Parameter	Cut-off	AUC	Se (%)	Sp (%)	PPV (%)	NPV (%)	value
SS by 2D-SWE	13.2 kPa	0.84	87.5	69.0	66.0	88.9
SS by pSWE	2.91 m/s	0.90	85.0	75.8	70.8	88.0
Rule-out and rule-in cut-off values
2D-SWE	Rule-out	11.4 kPa	0.84	97.5	42.0	53.4	96.0	<0.001
	Rule-in	16.7 kPa	0.84	47.5	93.1	86.4	72.4	<0.001
pSWE	Rule-out	2.80 m/s	0.90	92.5	60.4	61.7	92.1	<0.001
	Rule-in	3.42 m/s	0.90	50.0	98.3	95.5	75.0	<0.001

Se: sensitivity; Sp: specificity; PPV: positive predictive value; NPV: negative predictive value; and AUROC: area under a receiver operating curve. ^∗Cut-off values that optimized sensitivity were chosen. Cut-off values that optimized specificity were chosen.