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. Author manuscript; available in PMC: 2012 Jan 1.
Published in final edited form as: Ann Thorac Surg. 2011 Jan;91(1):157–164. doi: 10.1016/j.athoracsur.2010.09.078

Fig 1.

Fig 1

Annular and leaflet segmentation. (A) Annular delineation using rotational cross-sections at 10-degree increments, centered on the geometric center of the mitral valve. (B) Leaflet segmentation using transverse cross-sections every 1 mm along intercommissural axis. (C) Regurgitant orifice delineation using rotational cross-sections at 5-degree increments, centered on the aortomitral junction. In each panel, the three-dimensionally rendered echocardiographic volume containing the mitral valve is displayed on the left, with cross-sectional planes; the two-dimensional resulting cross-section is displayed on the right. (AA = anterior annulus; AC = anterior commissure; AML = anterior mitral leaflet; AoV = aortic valve; Coapt = coaptation; LA = left atrium; LV = left ventricle; LVOT = left ventricular outflow tract; MVO = mitral valve orifice; PA = posterior annulus; PC = posterior commissure; PML = posterior mitral leaflet; RO = regurgitant orifice.)