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Fig. 1 | BMC Medical Imaging

Fig. 1

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

Fig. 1

Illustrations showing fetal normal and abnormal hemodynamics. The normal fetal hemodynamics are illustrated in (a). The flow direction of right heart circulation is indicated by the black arrows. Blood flow direction at DV (①), FO (②), and the DA(③) are indicated by three green arrows. The hemodynamics of increasing RA volume are illustrated in (b), which contains several anomalies, such as restrictive FO (①), pulmonary regurgitation (②), TAPVC (③), increasing blood volume in SVC (④) and IVC (⑤), tricuspid dysplasia (⑥) and atresia (⑦), and so on. The hemodynamics of increasing right heart pressure are illustrated in (c). The associated cardiac anomalies are pulmonary stenosis/atresia (①) and contraction/closure of DA (②). DA: ductus arteriosus; DV: ductus venous; FO: foramen ovale; IVC: inferior vena cava; LA: left atrium; LV: left ventricle; RA: right atrium; RV: right ventricle; SVC: superior vena cava; TAPVC: total anomalous pulmonary venous connection

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BMC Medical Imaging

ISSN: 1471-2342

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