Table 3.

Cross Tabulation of ROC AUC between the different indexed methods

Indexed LA AP diameter	Indexed LA Area 4C	Indexed LA elipsoid volume	Indexed LA 1P area-length volume	Indexed LA 2P area-length volume
Indexed LA AP diameter	LAAT p = 0.08	LAAT p = 0.910	LAAT p = 0.122	LAAT p = 0.082
	DSEC p = 0.1	DSEC p = 0.231	DSEC p = 0.248	DSEC p = 0.389
	LFV p = 0.024	LFV p = 0.358	LFV p = 0.127	LFV p = 0.245
	LA ABN p = 0.046	LA ABN p = 0.187	LA ABN p = 0.154	LA ABN p = 0.249
	Indexed LA Area 4C	LAAT p = 0.037	LAAT p = 0.888	LAAT p = 0.795
		DSEC p = 0.451	DSEC p = 0.466	DSEC p = 0.358
		LFV p = 0.064	LFV p = 0.061	LFV p = 0.069
		LA ABN p = 0.212	LA ABN p = 0.186	LA ABN p = 0.242
		Indexed LA elipsoide volume	LAAT p = 0.010	LAAT p = 0.033
			DSEC p = 0.722	DSEC p = 0.997
			LFV p = 0.314	LFV p = 0.472
			LA ABN p = 0.565	LA ABN p = 0.805
			Indexed LA 1P area-length volume	LAAT p = 0.766
				DSEC p = 0.608
				LFV p = 0.519
				LA ABN p = 0.633
				Indexed LA 2P area-length volume

Legend: AP – anteroposterior; DSEC – dense spontaneous echocardiographic contrast; LA – left atrial; LA ABN – left atrial abnormality; LAAT – left atrial appendage thrombus; LFV - left atrial appendage low flow velocities; p – significance level; 4C – 4-chamber; 1P – single-plane; 2P – biplane.