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. 2022 Jan 13;24:9. doi: 10.1186/s12968-021-00842-0

Table 3.

Comparison of device parameters before, after CMR and at 1-year follow-up

Before CMR After CMR At 1-y follow-up P value
P-wave amplitude (mV) 4.6 ± 4.4 4.6 ± 4.4 3.3 ± 1.0 0.36
R-Wave amplitude (mV) 11.8 ± 4.8 11.8 ± 4.8 11.3 ± 5.1 0.77
Atrial lead impedance (Ohm) 483.3 ± 96.3 453.9 ± 99.05 484.1 ± 108.2 0.78
Ventricular lead impedance (Ohm) 476.2 ± 106.2 497.3 ± 68.8 464 ± 76.2 0.75
Atrial PCT (V@0.4 ms) 0.72 ± 0.29 0.75 ± 0.24 1.08 ± 1.24 0.22
Ventricular PCT (V@0.4 ms) 0.80 ± 0.21 0.82 ± 0.20 0.84 ± 0.30 0.68