Skip to main content

Table 4 Three-dimensional mitral valve dimension

From: Comparison of mitral annulus geometry between patients with ischemic and non-ischemic functional mitral regurgitation: implications for transcatheter mitral valve implantation

  Ischemic mitral regurgitation N = 41 Non ischemic mitral regurgitation N = 53 p
Diastolic dimension
 Annulus area (3D) (cm2) 10.7 ± 2.5a 11.6 ± 2.7a 0.124
 Annulus best fit plane (cm2) 9.9 ± 2.3a 10.7 ± 2.5a 0.135
 Annulus perimeter (cm) 11.7 ± 1.4a 12.2 ± 1.4a 0.111
 AP diameter (cm) 3.3 ± 0.4a 3.5 ± 0.5a 0.072
 ALPM diameter (cm) 3.6 ± 0.4a 3.8 ± 0.5a 0.129
 Commissural diameter(cm) 3.6 ± 0.4 3.7 ± 0.4 0.300
 Itertrigonal distance (cm) 2.7 ± 0.4a 2.8 ± 0.3a 0.374
 Annulus height (mm) 6.3 ± 1.7a 6.8 ± 1.7a 0.144
 Sphericity index 0.9 ± 0.1a 0.9 ± 0.1a 0.963
 Non planar angle (°) 156 ± 11a 153 ± 10a 0.232
 Anterior leaflet area (cm2) 7.5 ± 1.6a 8.0 ± 1.6a 0.142
 Posterior leaflet area (cm2) 7.2 ± 2.3a 7.5 ± 2.1a 0.413
 Anterior leaflet length (cm) 2.9 ± 0.4 3.3 ± 0.9a 0.102
 Posterior leaflet length (cm) 1.6 ± 0.4a 1.7 ± 0.6a 0.319
 Aorto-mitral angle (°) 131 ± 9a 135 ± 11a 0.115
Systolic dimension
 Annulus area (3D) (cm2) 9.8 ± 2.3 10.8 ± 2.7 0.046
 Annulus best fit plane (cm2) 9 ± 2.1 9.9 ± 2.5 0.063
 Annulus perimeter (cm) 11.2 ± 1.3 11.8 ± 1.5 0.048
 AP diameter (cm) 3.1 ± 0.4 3.2 ± 0.5 0.063
 ALPM diameter (cm) 3.5 ± 0.4 3.7 ± 0.5 0.065
 Commissural diameter(cm) 3.5 ± 0.4 3.7 ± 0.4 0.130
 Itertrigonal distance (cm) 2.5 ± 0.3 2.7 ± 0.3 0.051
 Annulus height (mm) 6.7 ± 1.6 7.5 ± 1.9 0.047
 Sphericity index 0.9 ± 0.08 0.9 ± 0.1 0.598
 Non planar angle (°) 153 ± 11 150 ± 10 0.268
 Anterior leaflet area (cm2) 6.5 ± 1.6 7.4 ± 1.7 0.006
 Posterior leaflet area (cm2) 5.7 ± 1.7 6.5 ± 1.9 0.049
 Anterior leaflet length (cm) 2.8 ± 0.6 3 ± 0.4 0.022
 Posterior leaflet length (cm) 1.3 ± 0.4 1.5 ± 0.8 0.022
 Aorto-mitral angle (°) 135 ± 10 141 ± 11 0.011
 Tenting height (mm) 9.3 ± 2.6 10.3 ± 2.8 0.082
 Tenting area (cm2) 2.2 ± 0.7 2.4 ± 0.8 0.141
 Tenting volume (mL) 4 ± 1.7 4.7 ± 1.7 0.047
  1. Data are expressed as Mean ± Standard Deviation
  2. Abbreviations: ALPM anterolateral-posteromedial, AP antero.posterior diameter
  3. Italicized values highlight statistically significant differences
  4. aStatistical difference vs systolic dimension