Table 1. Diagnostic performance of different parameters analyzed with ROC curves.

	Parameter
Performance metric	R2	Curvature	Amplitude	Composite
Specificity	93.8%	93.8%	84.4%	96.9%
Sensitivity	75%	75%	87.5%	87.5%
Accuracy	83.3%	83.3%	86.1%	91.7%
AUC	0.851	0.857	0.899	0.96