Table 1.
Population Characteristics
| Age (year) | 60 ± 15 |
| Male gender | 42% (36) |
| Mitral Valve Type | |
| Mechanical | 59% (50) |
| Bioprosthetic | 41% (35) |
| Image Acquisition Parameters | |
| Vendor (Siemens/GE/Phillips) | 58/39/4% |
| TR | 2.8 ± 0.4 |
| TE | 1.2 ± 0.3 |
| Flip Angle | 66 ± 12 |
| Bandwidth | 843 ± 304 |
| Long Axis Views Acquired | |
| Mean # | 2.9 ± 0.5 |
| % with 3 views | 91% (77) |
| Geometric and Functional Indices | |
| Left Atrium | |
| Diameter (cm) | 4.8 ± 1.1 |
| Area (cm2) | 29 ± 13 |
| Area index (cm2/m2) | 16 ± 8 |
| Left Ventricle | |
| Ejection fraction (%) | 47 ± 16 |
| End-diastolic volume (ml) | 176 ± 98 |
| End-diastolic volume index (ml/m2) | 94 ± 54 |
| End-systolic volume (ml) | 102 ± 93 |
| End-systolic volume index (ml/m2) | 54 ± 51 |
| Stroke volume (ml) | 74 ± 29 |