
Keywords: کمبود فیبرولیاستیک; Functional mitral regurgitation; Degenerative mitral regurgitation; Chordae tendineae; 3D transesophageal echocardiography; CL; Chordal length; FED; Fibroelastic deficiency; FMR; Functional (secondary) mitral regurgitation; LSA; Leaflet surface area; LV;