Table 1.

Classification performance of new and traditional indicators according to randomized SVM.

Independent variables	AUC	Total accurracy	Specificity	Sensitivity
Newly proposed parameters
LS PC1 at all homologous times	0.88	0.86	0.93	0.60
LS PC2 at all homologous times	0.84	0.77	0.82	0.56
LS PC2 at all homologous times	0.80	0.77	0.84	0.52
LS PC1/PC2/PC3 at all homologous times	0.89	0.91	0.96	0.72
LH trajectory size	0.79	0.81	0.93	0.39
LH trajectory PC1/PC2 angle	0.64	0.72	0.89	0.10
LH trajectory PC1/PC3 angle	0.81	0.81	0.90	0.48
LH trajectory shape first 10 PCs	0.77	0.80	0.88	0.50
LV-LA covariation direction	0.70	0.81	0.93	0.39
Traditional 3DSTE parameters
*3D Left ventricular mass	0.96	0.95	0.97	0.85
*Indexed 3D Left ventricular mass	0.93	0.94	0.97	0.84
**3D Left atrium Volume indexed	0.86	0.92	0.97	0.73
Left atrium radial global strain	0.62	0.74	0.93	0.02
Left atrium circumferential global strain	0.74	0.84	0.95	0.45
Left atrium longitudinal global strain	0.69	0.72	0.83	0.32
Left ventricle radial global strain	0.64	0.74	0.92	0.07
Left ventricle circumferential global strain	0.69	0.78	0.93	0.22
Left ventricle longitudinal global strain	0.78	0.80	0.91	0.39

Asterisk indicates that circular reasoning affects corresponding results. Double asterisk indicates a size-associated parameter.