CMR characteristics of Apical vs non-Apical HCM
| CMR findings | Total Cohort (n = 104) | Non-apical (n = 73) | Apical (n = 31) | P-value |
|---|---|---|---|---|
| Mean LVEF (%) | 69.7 | 68.4 | 72.6 | 0.0552 |
| Mean LVEDVI (mL m-2) | 73.7 | 76.7 | 66.8 | 0.0718 |
| Mean LVESVI (mL m-2) | 23.8 | 25.5 | 20.1 | 0.1177 |
| Mean indexed stroke volume | 53.1 | 55.9 | 46.4 | 0.0333 |
| Mean max. LV wall thickness (mm) | 18.2 | 19.3 | 15.6 | 0.0001 |
| Mean indexed LV mass | 93.5 | 98.4 | 82.4 | 0.0102 |
| LVOTO | 35.2 | 41.1 | 12.5 | 0.0403 |
| SAM | 31.4 | 38.9 | 6.25 | 0.0143 |
| LGE% | 86.9 | 85.7 | 89.7 | 0.8063 |
LVEF, left ventricular ejection fraction; LVEDVI, left ventricular end diastolic volume index; LVESVI, left ventricular end systolic volume index; LVOTO, Left ventricular outflow tract obstruction; SAM, systolic anterior valve motion; LGE, late gadolinium enhancement.