Table 2.
Heart chamber | RA (N = 24) | RV (N = 36) | LV (N = 36) | RA + RV + LV (N = 96) |
---|---|---|---|---|
Spontaneous breathing, mean ± SD (mm) | 8.0 ± 1.8 | 6.3 ± 1.8 | 6.4 ± 1.5 | 6.8 ± 1.9 (P < 0.001 vs. inspiration and expiration) |
Inspiration breath hold, mean ± SD (mm) | 5.9 ± 1.3 | 4.7 ± 1.3 | 5.9 ± 1.6 | 5.5 ± 1.6 (P < 0.001 vs. spontaneous breathing and expiration) |
Expiration breath hold, mean ± SD (mm) | 9.5 ± 1.9 | 8.1 ± 1.7 | 8.5 ± 1.1 | 8.6 ± 1.6 (P < 0.001 vs. spontaneous breathing and inspiration) |
Pacing during spontaneous breathing and during breath hold on inspiration and expiration. Mean distance between reference pacing site and reconstructed pacing site and standard deviation for N pacing events.
RA, right atrium; RV, right ventricle; LV, left ventricle.