Which tricuspid leaflets are typically seen during echocardiography?

In echocardiography, the tricuspid valve consists of three leaflets: the anterior, posterior, and septal (which can be referred to as medial in some contexts). When visualizing the tricuspid valve during an echocardiographic exam, the anterior leaflet is often prominently displayed due to its position and orientation within the right atrioventricular junction. The medial or septal leaflet is also prominently visualized, particularly in the apical four-chamber view, where it is adjacent to the interventricular septum. This positioning allows for clear imaging of both the anterior and medial leaflets, facilitating assessments of valve function and morphology.

During echocardiography, the posterior leaflet, while present, may not be as easily seen depending on the imaging plane and the patient's anatomy. Therefore, the combination of the anterior and medial (or septal) leaflets offers the most comprehensive view of the tricuspid valve during assessments. This is particularly important for diagnosing any potential abnormalities or valvular heart disease related to the tricuspid valve.