Utility of three-dimensional echocardiography and magnetic resonance imaging in the diagnosis of double-orifice tricuspid valve

Abstract

Duplication of atrioventricular valves involves the mitral valve more often than the tricuspid valve and is often associated with other cardiac defects. Double-orifice tricuspid valve (DOTV) is often identified in surgery or autopsy and missed on echocardiography, as the two orifices are orthogonal to the imaging plane. If suspected on echocardiography, it masquerades as mild tricuspid hypoplasia. Three-dimensional echocardiography and magnetic resonance imaging of a DOTV are presented.

Double-orifice tricuspid valve: case series and literature review

“…2 When assessing the tricuspid valve, careful attention should be paid to the annulus dimension, as the increase in dimension can be the first clue to an abnormal valve. 16,17 The next clue may be a bridge-like appearance of the leaflets in the apical four-chamber view, as described by Obase et al 18 As most of these defects will present with regurgitation of the valve, a regurgitant jet that is not centrally located, as was seen in Case 1, or a double inflow jet on colour Doppler should alert the imager to the presence of a DOTV (Fig. 1).…”