Mitral regurgitation mechanism assessed by 2D and 3D echocardiography in patient with an abnormal left coronary artery arising from the pulmonary artery.

A two-month-old male infant presented with cardiac heart failure. Two-dimensional (2D) echocardiography showed an anomaly of the left coronary artery (LCA) arising from the pulmonary artery (Fig. 1) with mitral regurgitation (Fig. 2). Three-dimensional (3D) echocardiography was performed to determine left ventricular (LV) volume (i.e., 33, paediatric matrix probe 2—7MHz, Philips). The global and regional function of the left ventricle were analysed with the Q-LAB 4.2 system (Philips). LV ejection fraction was 54% with poor anterolateral contraction (Fig. 3). The 2D apical 4-chamber view depicted a restrictive motion of the mitral valve with hyperechogenicity of the anterolateral papillary muscle (Fig. 4). Artère coronaire gauche ; Échographie tridimensionnelle