Key result
Real-time three-dimensional echocardiography successfully identified an unusual bileaflet tricuspid valve with two commissures, consistent with surgical findings.
Case Report (n=1)
RT3DE can overcome the limitations of 2DE by providing an en face view of the tricuspid valve, allowing for accurate anatomical assessment such as identifying a rare bileaflet variant.
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May enhance tricuspid assessment in select cases; leaves open broader adoption beyond 2DE without validation.
The right atrioventricular valve is formed by three leaflets as described by the classic anatomic studies. Two-dimensional transthoracic echocardiography (2DE) shows the tricuspid valve (TV) in its long axis. However, short-axis views of the TV leaflets are not generally obtained and therefore distinction between leaflets by 2DE is difficult. Real time three-dimensional echocardiography (RT3DE) overcomes this limitation of 2DE and facilitates obtaining short axis view (enface view) of the TV. In the current case study, en face view of the TV obtained by RT3DE was found to be formed of only two leaflets with two commissures. The surgical findings were consistent with that of RT3DE.
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Anwar et al. (2008) conducted a case report in Bileaflet Tricuspid Valve (n=1). Real time three-dimensional echocardiography (RT3DE) vs. Two-dimensional transthoracic echocardiography (2DE) was evaluated on Identification of tricuspid valve anatomy. Real-time three-dimensional echocardiography successfully identified an unusual bileaflet tricuspid valve with two commissures, consistent with surgical findings.
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