Table 2.
CMR variables
| PHT (n = 26) |
Control (n = 18) |
p value | |
|---|---|---|---|
| Baseline heart rate (beats/min) | 86 ± 9 | 70 ± 13 | < 0.001 |
| LVEDVI (ml/m2) | 78.1 ± 13.6 | 91.8 ± 17.7 | 0.006 |
| LVESVI (ml/m2) | 32.7 ± 8.9 | 37.2 ± 7.5 | 0.09 |
| LVSVI (ml/m2) | 44.3 ± 8.5 | 54.5 ± 11.1 | 0.001 |
| LVCI (l/min/m2) | 4.5 ± 0.9 | 3.5 ± 1 | 0.003 |
| LVEF (%) | 58.4 ± 6.5 | 59.3 ± 2.7 | 0.58 |
| LVmass index (g/m2) | 46.2 ± 8.1 | 47.5 ± 13.7 | 0.97 |
| RVEDVI (ml/m2) | 76.1 ± 13.5 | 91.7 ± 17.7 | 0.002 |
| RVESVI (ml/m2) | 32.5 ± 9.3 | 41.8 ± 11 | 0.004 |
| RVSVi (ml/m2) | 43.5 ± 7.9 | 52.3 ± 0.7 | 0.004 |
| RVCI (l/min/m2) | 4.5 ± 1.0 | 3.4 ± 1 | 0.002 |
| RVEF (%) | 57.8 ± 7.5 | 55.8 ± 3.9 | 0.32 |
| Pre-contrast global T1 (ms) | 1053.3 ± 41.9 | 986.1 ± 41.9 | < 0.001 |
| Pre-contrast max segmental T1 (ms) | 1120.1 ± 64.6 | 1054 ± 60.3 | 0.006 |
| Post-contrast global T1 (ms) | 444.1 ± 72.3 | 483.1 ± 55.0 | 0.008 |
| Global ECV (%)a | 26.5 ± 4.0 | 24.0 ± 2.7 | 0.017 |
| Global T2 (ms)b | 48.5 ± 3.9 | 46.7 ± 1.9 | 0.09 |
| Maximum segmental T2 (ms)b | 54.1 ± 4.8 | 52.9 ± 4.1 | 0.39 |
LV left ventricle, RV right ventricle, EDVI end-diastolic volume indexed, ESVI end-systolic volume indexed, SVI stroke volume indexed, CI cardiac index, EF ejection fraction
Values reported as mean ± standard deviation unless specified
aAvailable data on n = 24
bAvailable data on n = 21. Indexing done to BSA