Platelet count combined with right liver volume and spleen volume measured by magnetic resonance imaging for identifying cirrhosis and esophageal varices

Table 3 Receiver operating curve analysis of measured parameters for identifying the presence and Child-Pugh class of cirrhosis, and the presence of esophageal varices

Parameter	Cutoff values	Differentiations	AUC	Sensitivity	Specificity
PLT (109/L)	217	Normal liver vs cirrhosis	0.903	97.5%	86.8%
	140	Child-Pugh class A vs B	0.661	66.0%	64.2%
	114	Child-Pugh class A vs C	0.859	80.9%	82.5%
	96.5	Child-Pugh class B vs C	0.703	61.1%	79.4%
	99.5	No varices vs varices	0.678	61.5%	60.2%
SV/PLT	0.83	Normal liver vs cirrhosis	0.952	91.2%	97.5%
	2.99	Child-Pugh class A vs B	0.663	58.9%	63.8%
	5.19	Child-Pugh class A vs C	0.873	69.8%	95.7%
	5.40	Child-Pugh class B vs C	0.722	69.8%	62.1%
	4.13	No varices vs varices	0.782	72.7%	68.4%
SI/PLT	2	Normal liver vs cirrhosis	0.967	93.7%	97.5%
	6.08	Child-Pugh class A vs B	0.692	65.3%	61.7%
	12.55	Child-Pugh class A vs C	0.902	76.2%	97.9%
	13.01	Child-Pugh class B vs C	0.724	74.6%	63.2%
	11.08	No varices vs varices	0.773	72.7%	70.1%
RVPS	883.90	Normal liver vs cirrhosis	0.973	97.5%	92.7%
	330.98	Child-Pugh class A vs B	0.740	78.7%	62.1%
	175.72	Child-Pugh class A vs C	0.976	93.6%	92.1%
	129.36	Child-Pugh class B vs C	0.853	72.6%	81.0%
	226.46	No varices vs varices	0.758	64.1%	79.5%

PLT: Platelet count; SV: Spleen volume; SI: Spleen volumetric index; RV: Right liver lobe volume; RVPS: RV × PLT/SV; AUC: Area under the receiver operating curve.