Table 3.
Cardiac magnetic resonance data.
| Cardiac MRI | All N = 158 | Apical HCM N = 43 | Septal HCM N = 115 | P-value |
|---|---|---|---|---|
| Maximal wall thickness, mm | 20 (6) | 19 (6) | 20 (6) | 0.08 |
| LV mass, g | 175 (81) | 176 (90) | 174 (79) | 0.64 |
| LV mass indexed, g/m2 | 92 (35) | 91 (36) | 92 (35) | 0.54 |
| LVEDV mL/m2 | 73 (24) | 73 (21) | 73 (24) | 0.83 |
| LV ESV ml/m2 | 24 (19) | 23 (19) | 24 (19) | 0.29 |
| LVEF, % | 75 (10) | 75 (9) | 76 (10) | 0.22 |
| RVEDV mL/m2 | 65 (24) | 64 (27) | 65 (23) | 0.81 |
| RVESV mL/m2 | 23 (11) | 23 (17) | 23 (10) | 0.25 |
| RVEF, % | 64 (13) | 64 (14) | 64 (12) | 0.35 |
| Presence of any LGE, n (%) | 136 (86) | 39 (91) | 97 (84) | 0.44 |
| Number of wall segments with LGE | 4 (7) | 5 (9) | 4 (7) | 0.21 |
| LGE mass, g | 12 (18) | 9 (16) | 13 (17) | 0.52 |
| LGE volume, mL | 12 (18) | 9 (18) | 12 (18) | 0.52 |
| LGE percentage of LV, % | 7 (10) | 7 (9) | 7 (10) | 0.64 |
| LGE volume ≥ 15 % LV), n (%) | 30 (23) | 9 (21) | 28 (24) | 0.68 |
| LV apical aneurysm, n (%) | 9 (3) | 8 (10) | 1 (0.5) | <0.001 |
Continuous variables are presented as median (interquartile range, IQR).
HCM, hypertrophic cardiomyopathy; LV, left ventricle/left ventricular; LVEDV, left ventricular end-diastolic volume; LVESV, left ventricular end-systolic volume; LVEF, left ventricular ejection fraction; RVEDV, right ventricular end-diastolic volume; RVESV, right ventricular end-systolic volume; RVEF, right ventricular ejection fraction; LGE, late gadolinium enhancement.