Table I.
The range in valve measurements derived from semi-automated analysis, and the average difference ± standard deviation in valve measurements derived from semi-automated and manual 3D US image analysis (shown in italics). The values are shown separately for all subjects, subjects with trace to mild MR, and subjects with moderate to severe MR. (AA = annular area, AC = annular circumference, AH = annular height, IW = intercommissural width, SL = septolateral length, TTV = total tenting volume, PATV = percent anterior tenting volume).
| AA (mm2) | AC (mm) | AH (mm) | IW (mm) | SL (mm) | TTV (mm3) | PATV (%) | |
|---|---|---|---|---|---|---|---|
| All subjects (n = 14) | 517.0–1421.8 | 86.6–140.8 | 2.9–9.1 | 24.4–39.5 | 21.9–41.6 | 762–3678 | 46.3–71.2 |
| 47.1 ± 45.4 | 3.6 ± 3.1 | 0.7 ± 0.6 | 2.8 ± 1.9 | 1.2 ± 1.2 | 432 ± 374 | 7.5 ± 4.8 | |
| Trace to mild MR (n = 8) | 517.0–1002.8 | 86.6–120.0 | 4.6–8.3 | 24.4–34.1 | 21.9–30.4 | 762–3066 | 47.3–68.2 |
| 56.0 ± 52.6 | 3.8 ± 3.8 | 0.8 ± 0.6 | 2.7 ± 1.8 | 1.3 ± 1.4 | 315 ± 193 | 7.0 ± 3.8 | |
| Moderate to severe MR (n = 6) | 770.3–1421.8 | 96.3–140.8 | 2.9–9.1 | 24.6–39.5 | 27.9–41.6 | 1040–3678 | 46.3–71.2 |
| 35.1 ± 34.5 | 3.2 ± 2.3 | 0.7 ± 0.6 | 3.0 ± 2.3 | 1.1 ± 0.8 | 587 ± 511 | 8.1 ± 6.2 | |
| Average percent difference (n=14) | 6.0% | 3.4% | 11.7% | 9.7% | 4.1% | 26.2% | 12.2% |