Table 3 Similarity of ventricular depolarization metrics measured from 99-lead BSPM and 12-lead ECG.

From: Localization of the ventricular pacing site from BSPM and standard 12-lead ECG: a comparison study

Parameter

12-lead ECG

BSPM

ICC

95% CI

P value

Intrinsic rhythm

TAT, ms

169 ± 23

166 ± 24

0.94

0.84–0.98

< 0.0001

LVAT, ms

144 ± 20

143 ± 19

0.93

0.81–0.97

< 0.0001

VEU, ms

48 ± 12

42 ± 17

0.83

0.52–0.94

< 0.0001

LV pacing

TAT, ms

179 ± 26

180 ± 29

0.84

0.58–0.94

< 0.0001

LVAT, ms

156 ± 21

153 ± 21

0.83

0.58–0.95

< 0.0001

VEU, ms

-50 ± 32

-39 ± 35

0.85

0.60–0.94

< 0.0001

RV pacing

TAT, ms

177 ± 24

179 ± 21

0.95

0.86–0.98

< 0.0001

LVAT, ms

143 ± 24

140 ± 23

0.92

0.78–0.97

< 0.0001

VEU, ms

31 ± 16

30 ± 16

0.94

0.84–0.98

< 0.0001

  1. Data are presented as mean ± standard deviation.
  2. BSPM Body surface potential map, ICC Interclass correlation coefficient, CI Confidence interval, TAT Total activation time, LVAT Left ventricular activation time, VEU Ventricular electrical uncoupling.
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