Mechanical dyssynchrony and deformation imaging in patients with functional mitral regurgitation

Figure 1 Asymmetric and symmetric tethering pattern. A, B: Asymmetric tethering pattern. Typical “hockey stick” or ‘‘bent knee’’ configuration. MV coaptation point is moved posteriorly and the anterior leaflet coapts creating a ‘‘pseudo-prolapse’’ appearance with a large regurgitant jet oriented along the posterior wall of the left atrium; C: Symmetric tethering pattern. Both leaflets are apically dislocated and coapt at the same level into the ventricle; D: Color-Doppler shows large central jet.