Table 2.
Baseline imaging characteristics of study population (n = 104).
| Variable | Value |
|---|---|
| Aortic valve morphology | |
| Trileaflet, N (%) | 14 (13.6) |
| Bicuspid, N (%) | 79 (76.7) |
| Unicuspid/quadricuspid, N (%) | 4 (4) |
| Unknown, N (%) | 6 (6) |
| Aortic regurgitation assessment | |
| Integrative approach | |
| Moderate-to-severe AR, N (%) | 56 (54) |
| Severe AR, N (%) | 48 (46) |
| 2D echo vena contracta width, mm | 6.5 ± 1.5 |
| Diastolic flow reversal velocity, cm/s | 19.4 ± 4.3 |
| 2D echo regurgitant volume, mL | 52 ± 48 |
| 2D echo regurgitant fraction, % | 36 ± 18 |
| 3D echo vena contracta area, mm2 | 29 ± 13 |
| CMR regurgitation volume, mL | 50 ± 28 |
| CMR regurgitation fraction, % | 38 ± 17 |
| Left ventricle assessment | |
| 2D echo end-diastolic diameter, mm | 58 ± 6 |
| 2D echo end-systolic diameter, mm | 37 ± 5 |
| 2D echo end-systolic diameter index, mm/m2 | 18 ± 3 |
| 2D echo end-diastolic volume, mL | 158 ± 68.0 |
| 2D echo end-systolic volume, mL | 56 ± 32 |
| 2D echo ejection fraction, % | 64 ± 6 |
| 3D echo end-diastolic volume, mL | 177 ± 51 |
| 3D echo end-diastolic volume index, mL/m2 | 86 ± 23 |
| 3D echo end-systolic volume, mL | 69 ± 24 |
| 3D echo end-systolic volume index, mL/m2 | 33 ± 11 |
| 3D echo ejection fraction, % | 62 ± 5 |
| CMR end-diastolic volume, mL | 234 ± 81 |
| CMR end-diastolic volume index, mL/m2 | 118 ± 30 |
| CMR end-systolic volume, mL | 88 ± 51 |
| CMR end-systolic volume index, mL/m2 | 43 ± 23 |
| CMR ejection fraction, % | 61 ± 6 |
Values are means ± standard deviations or numbers (percentage). 2D: two-dimensional, 3D: three-dimensional, echo: echocardiography, CMR: cardiac magnetic resonance.