DK2985_C000 1..28 - AlSharqia Echo Club

68 Transesophageal Echocardiography(A)(B)PERIMEMBRANOUSSEPTUMLARARVLVTRABECULARSEPTUM(C)TRABECULAR SEPTUMMEMBRANOUS SEPTUMOUTLET SEPTUMINLET SEPTUMFigure 4.16 (A, B) Mid-esophageal four-chamber view at 1308 of the ventricular septum. (C) Anatomical classification: the ventricularseptum is divided into a membranous, trabecular, inlet and outlet portion (LA, left atrium; LV, left ventricle; RA, right atrium; RV,right ventricle).can also be assessed through the deep transgastric short-axisviews at 08 below the papillary muscle level.The membranous septum is divided into an interventricularand an atrioventricular portion by the insertion of thetricuspid septal leaflet. The inlet portion beneath the TV isvisualized in the mid-esophageal four-chamber view(Fig. 4.16[A, B]), as well as the transgastric short-axisview of the basal septum, both at 08. The perimembranous(A)(B)AoVLATVRAPVRVPERIMEMBRANOUSSEPTUMPERIMEMBRANOUSOUTLET SEPTUMFigure 4.17 Examination of the ventricular septum through a mid-esophageal short-axis view at 888 (AoV, aortic valve; LA, leftatrium; PV, pulmonic valve; RA, right atrium; RV, right ventricle; TV, tricuspid valve).