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Fig. 3 | BMC Medical Imaging

Fig. 3

From: Strategies for diagnosis of fetal right atrium dilation: based on fetal cardiac anatomy and hemodynamics

Fig. 3

Sonograms showing fetal pulmonary valve atresia. The four-chamber view showed RA dilatation, hypertrophic RV, and severe TR (a). The three-vessel trachea view shows that the blood flow direction (indicated by the arrows) in the ductus is from DAO to the PA, instead of the normal PA-DAO direction. In addition, no blood is visualized going through the pulmonary valve (b). AO: aorta; DAO: descending aorta; LA: left atrium; LV: left ventricle; PA: pulmonary artery; RA: right atrium; RV: right ventricle; TR: tricuspid regurgitation

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BMC Medical Imaging

ISSN: 1471-2342

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