Table 4.
Conventional and STE parameters by 3D Echo according to the LVEF.
| LVEF < 0.40 (rLVEF) (N = 32) | LVEF ≥ 0.40 and < 0.50 (mrLVEF) (N = 10) | LVEF ≥ 0.50 (pLVEF) (N = 30) | p | |
|---|---|---|---|---|
| LA indexed volume (ml/m2) | 37.6 ± 13.6 | 31.1 ± 10.1 | 21.3 ± 7.2 | < 0.001 **, † |
| LVEDVi (ml) | 114.3 ± 35.8 | 92.2 ± 16.5 | 58.0 ± 26.5 | < 0.001 **, † |
| LVESVi (ml) | 79.5 ± 28.3 | 50.6 ± 12.0 | 39.2 ± 10.5 | < 0.001 *, **, † |
| LVEF (%) | 0.31 ± 0.06 | 0.46 ± 0.05 | 0.61 ± 0.03 | < 0.001 *, **, † |
| Sphericity index | 0.48 ± 0.12 | 0.43 ± 0.08 | 0.36 ± 0.08 | < 0.001 **, † |
| LV myocardial mass index (g/m2) | 157.8 ± 50.9 | 139.3 ± 35.5 | 108.0 ± 27.5 | < 0.001 **, † |
| Feasibility 3D STE | N = 527/576 (91.5%) | N = 161/180 (89.4%) | N = 421/476 (88%) | 0.83 |
| Global longitudinal strain (%) | − 9.0 ± 5.1 | − 14.7 ± 3.7 | − 16.8 ± 3.3 | 0.001 *, **, † |
| Global circunferencial strain (%) | − 9.1 ± 3.9 | − 12.5 ± 3.6 | − 14.5 ± 6.9 | 0.001 *, ** |
| Global radial strain (%) | 21.8 ± 11.0 | 37.6 ± 16.2 | 46.5 ± 11.5 | < 0.001 *, ** |
| Área strain (%) | − 15.5 ± 6.8 | − 24.6 ± 5.7 | − 28.0 ± 5.2 | < 0.001 *, ** |
Significant values are in bold.
*LA Left atrium, LVEF Left ventricle ejection fraction, LVEDVi Indexed Left ventricle end diastolic volume, LVESVi Indexed Left ventricle end systolic volume. *rLVEF × mrLVEF, p < 0.05, **rLVEF × pLVEF, p < 0.05, †mrLVEF × pLVEF, p < 0.05. rLVEF reduced left ventricular ejection fraction, mrLVEF mid-range or mildly ejection fraction, pLVEF preserved left ventricular ejection fraction.