Table 3.
Correlations between MR parameters in septal, RV insertion point and LV free wall T1
| Septal T1 (ms) | RV insertion point T1 (ms) | LV free wall T1 (ms) | |
|---|---|---|---|
| Age (years) | r = − 0.074 p = 0.159 | r = 0.007, p = 1.000 | r = − 0.086, p = 0.168 |
| BSA (m2) | r = 0.015, p = 0.771 | r = 0.041, p = 0.444 | r = −0.006, p = 0.915 |
| Heart Rate (bpm) | r = 0.011, p = 0.836 | r = − 0.073, p = 0.168 | r = − 0.086, p = 0.103 |
| RVEDV Index (ml/m2) | r = 0.066, p = 0.213 | r = 0.265**, p < 0.001** | r = 0.076, p = 0.151 |
| RVESV Index (ml/m2) | r = 0.027, p = 0.615 | r = 0.290, p < 0.001** | r = 0.088, p = 0.097 |
| RVSV Index (%) | r = 0.103, p = 0.050 | r = 0.003, p = 0.958 | r = 0.044, p = 0.406 |
| RVEF (%) | r = 0.003, p = 0.951 | r = −0.238, p < 0.001** | r = −0.080, p = 0.129 |
| LVEDV Index (ml/m2) | r = −0.035, p = 0.505 | r = −0.060, p = 0.257 | r = − 0.018, p = 0.734 |
| LVESV Index ml/m2) | r = 0.005, p = 0.924 | r = 0.011, p = 0.841 | r = −0.051, p = 0.335 |
| LVSV Index (%) | r = 0.051, p = 0.335 | r = −0.088, p = 0.096 | r = 0.011, p = 0.841 |
| LVEF (%) | r = 0.028, p = 0.598 | r = −0.066, p = 0.217 | r = 0.050, p = 0.347 |
| Systolic septal angle (°) | r = 0.096, p = 0.069 | r = 0.238, p < 0.001** | R = 0.017, p = 0.742 |
| Diastolic septal angle (°) | r = 0.157, p = 0.003** | r = 0.253, p < 0.001** | r = 0.017, p = 0.742 |
| RV mass index (g/m2) | r = 0.097, p = 0.075 | r = 0.229, p < 0.001** | r = 0.004, p = 0.935 |
| LV mass index (g/m2) | r = −0.027, p = 0.613 | r = 0.072, p = 0.173 | r = 0.041, p = 0.435 |
| VMI | r = 0.117, p = 0.031* | r = 0.180, p = 0.001** | r = −0.010, p = 0.851 |
Legend: WHO world health organisation, IPAH idiopathic pulmonary arterial hypertension, CTD Connective tissue disease, CHD chronic heart disease, CTEPH chronic thromboembolic pulmonary hypertension, RVEDV right ventricular end diastolic volume, RVESV right ventricular end systolic volume, RVSV right ventricular stroke volume, RVEF right ventricular ejection fraction, VMI ventricular mass index, LVEDV left ventricular end diastolic volume, LVESV left ventricular end systolic volume, LVSV left ventricular stroke volume, LVEF left ventricular ejection fraction, VMI ventricular mass index
P values indicate comparisons between patients with PH and the other two groups. * signifies a p value < 0.05, ** signifies a p value < 0.025