Table 3.
Cardiac Magnetic Resonance (CMR) parameters in the study groups.
| Cases(N=72) | Controls(N=31) | p | |
|---|---|---|---|
| Left Ventricle | |||
| LV Mass, g | 90·17 ± 24·23 | 88·59 ± 22·90 | 0·714 |
| LV Mass indexa, g/m² | 48·15 ± 9·57 | 47·74 ± 9·65 | 0·638 |
| LV End-systolic Volume, mL | 59·1 ± 16·0 | 59·8 ± 17·2 | 0·851 |
| LV End-systolic Volume indexa, mL/m² | 31·79 ± 7·4 | 32·39 ± 8·3 | 0·721 |
| LV End-diastolic Volume, mL | 152·2 ± 29·3 | 158·8 ± 32·5 | 0·313 |
| LV End-diastolic Volume indexa, mL/m² | 81·91 ± 11·91 | 86·27 ± 14·18 | 0·115 |
| LV Stroke volume, mL | 93·1 ± 18·1 | 98·9 ± 19·8 | 0·141 |
| LV Ejection fraction, % | 61·43 ± 5·8 | 62·67 ± 5·68 | 0·212 |
| LV Cardiac Output, L/mn | 6·08 ± 5·8 | 6·59 ± 1·8 | 0·207 |
| LV Mass-to-Volume, g/ml | 0·57 (0·4 ;1·1) | 0·55 (0·4 ;0·8) | 0·222 |
| LV longitudinal strain, % | -19·48 ± 2·41 | -19·53 ± 2·45 | 0·920 |
| LV systolic SR, s −1 | -0·904 ± 0·12 | -0·889 ± 0·19 | 0·694 |
| LV early diastole SR, s −1 | 0·837 ± 0·16 | 0·857 ± 0·22 | 0·940 |
| LV late diastole SR, s −1 | 0·389 ± 0·129 | 0·372 ± 0·20 | 0·665 |
| Right ventricle | |||
| RV End-systolic Volume, mL | 69·1 ± 19·9 | 63·2 ± 17·9 | 0·155 |
| RV End-systolic Volume indexa, mL/m² | 37·08 ± 9·0 | 34·22 ± 8·2 | 0·139 |
| RV End-diastolic Volume, mL | 159·0 ± 34·7 | 158·5 ± 34·8 | 0·951 |
| RV End-diastolic Volume indexa, mL/m² | 85·44 ± 14·5 | 86·37 ± 15·22 | 0·774 |
| RV Stroke volume, mL | 89·9 ± 19·6 | 95·4 ± 19·9 | 0·198 |
| RV Ejection fraction, % | 56·9 ± 5·9 | 60·5 ± 5·3 | 0·004 |
| RV Cardiac Output, L/min | 5·86 ± 1·4 | 6·3 ± 1·5 | 0·144 |
| LV myocardial wall motion | |||
| ≥ 1 segment hypokinetic, n (%) | 12 (16·67) | 0 (0·0) | 0·016 |
| ≥ 1 segment akinetic, n (%) | 1 (1·39) | 0 (0·0) | 1·000 |
| LV myocardial tissue characterization by CMR | |||
| Presence of LGE, n (%) | 5 (6·94) | 0 (0·0) | 0·188 |
| Pre-contrast T1, ms | 1014·14 ± 37·32 | 1015·4 ± 26·27 | 0·446 |
| Post-contrast T1, ms | 430·62 ± 55·21 | 476·06 ± 42·99 | <10−4 |
| T2, ms | 48·22 ± 3·11 | 48·26 ± 2·85 | 0·877 |
| Partition coefficient (λ) | 0·4218 ± 0·04 | 0·4351 ± 0·03 | 0·087 |
| ECV, % | 24·36 ± 2·57 | 25·41 ± 2·17 | 0·051 |
| ERM, % | 57·44 ± 5·99 | 53·04 ± 4·88 | 0·001 |
| Left Atrium | |||
| LA Maximum volume, mL | 63·33 ± 18·6 | 68·59 ± 14·7 | 0·058 |
| LA Maximum volume indexa, mL/m² | 34·14 ± 9·21 | 37·55 ± 7·66 | 0·026 |
| LA Minimum volume, mL | 21·49 ± 9·9 | 23·0 ± 7·1 | 0·130 |
| LA Minimum volume indexa, mL/m² | 11·50 ± 4·94 | 12·49 ± 3·95 | 0·126 |
| LA ejection fraction, % | 67·19 ± 7·65 | 66·89 ± 5·86 | 0·782 |
ECV, Extracellular Volume; ERM, T1 Enhancement Rate in the Myocardium; LA, Left Atrium; LGE, Late Gadolinium Enhancement; LV, Left Ventricle; RV, Right Ventricle; SR, Strain Rate.
a
Mass and volumetric values are indexed for Body Surface Area.