Aim: Assessment of pulmonary valve (PV) and right ventricular outflow tract (RVOT) using real-time 3-dimensional echocardiography (RT3DE). Methods: Two-dimensional echocardiography (2DE) and RT3DE were performed in 50 patients with congenital heart disease (mean age 32 ± 9.5 years, 60% female). Measurements were obtained at parasternal views: short axis (PSAX) at aortic valve level and long axis (PLAX) with superior tilting. RT3DE visualization was evaluated by 4-point score (1: not visualized, 2: inadequate, 3: sufficient, and 4: excellent). Diameters of PV annulus (PVAD), and RVOT (RVOTD) were measured by both 2DE and RT3DE, while areas (PVAA) and (RVOTA) by RT3DE only. Results: By RT3DE, PV was visualized sufficiently in 68% and RVOTexcellently in 40%. PVAD and PVAA were measured in 88%. RVOTD and PVAD by 2DE at PLAX were significantly higher than PSAX (P < 0.0001) and lower than that by RT3DE (P < 0.001). Conclusion: RT3DE helps inRVOT and PV assessment adding more details supplemental to 2DE.

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Keywords Pulmonary valve (PV), Real time 3-dimensional echocardiography (RT3DE), Right ventricular outflow tract (RVOT)
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Journal International Journal of Cardiovascular Imaging
Anwar, A.M, Soliman, O.I.I, van den Bosch, A.E, Vletter-McGhie, J.S, Geleijnse, M.L, ten Cate, F.J, & Meijboom, F.J. (2007). Assessment of pulmonary valve and right ventricular outflow tract with real-time three-dimensional echocardiography. International Journal of Cardiovascular Imaging, 23(2), 167–175. doi:10.1007/s10554-006-9142-3