Estimating Left Ventricular Mass from the Electrocardiogram across the Spectrum of LV Mass from Normal to Increased LV Mass in an Older Age Group

Table 2

The correlation between QRS voltage in some leads.

	S V3 + R aVL	AVL R × QRS duration	S V4 + S deepest precordium	V3S	V4S
aVL R (Sokolow)	0.574	0.485	0.095	0.0124	0.223
I R (Gubnar)	0.433	0.317	0.096	−0.029	0.025
III R	−0.175	−0.082	0.105	0.0503	−0.139
V1S (Wilson)	0.363	0.352	0.548	0.336	0.096
V2 S (Mazoleni)	0.518	0.547	0.819	0.739	0.363
V3 S	0.826	0.809	0.867	1	0.721
V4 S	0.717	0.740	0.781	0.721	1
V4 R	−0.209	−0.234	−0.057	−0.129	−0.287
V5 R (Wilson)	−0.04	−0.072	0.139	0.039	−0.123
V6 R (Wilson)	0.089	0.073	0.233	0.128	0.037
S deepest any precordial lead	0.597	0.611	0.896	0.744	0.421
S V4 + S deepest (Peguero)	0.763	0.784	1	0.866	0.781
S V1 + R V5/V6 (Sokolow)	0.2114	0.196	0.426	0.239	0.04
S V3 + R aVL (Cornell)	1	0.936	0.763	0.826	0.7167
S V2 + R V5/6 (Romhilt)	0.341	0.350	0.632	0.511	0.213
S V1/2 + R V5/6 (Murphy)	0.339	0.341	0.630	0.465	0.185
S V1/2 + R V6 (Grant)	0.387	0.389	0.665	0.504	0.228
R V5/6 (Holt)	0.043	0.029	0.220	0.104	−0.012
S V2 + R V4/5 (Wolff)	0.243	0.245	0.554	0.446	0.114
AVL R × QRS duration (Molloy Cornell)	0.936	1	0.784	0.804	0.740

Correlation coefficient (r) is listed as 1 when the factor is correlated with itself. , , , and .