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Fig. 2 | Cardiovascular Ultrasound

Fig. 2

From: Prenatal screening of fetal ventriculoarterial connections: benefits of 4D technique in fetal heart imaging

Fig. 2

Multiplanar slicing of TGA in a fetus of 25 gestational weeks. Panels a, b, and c represent three orthogonal planes (A, transverse; B, sagittal; and C, coronal). The cardiac apex in the 4CV was oriented upwards and the reference point (indicated by the green arrow) was placed in the crux of the heart in Panel a (A). Move the reference point to the right ventricle in Panel a. By adjusting the position of the reference point in Panel a, a great artery connecting to the right ventricle could be visualized in Panel b (B). Moving the reference point to the valve (C) and then navigating along the artery (D) in Panel b, we could then confirm that aorta was originated from the right ventricle and the pulmonary artery (characterized by the short trunk with bifurcation) from the left in Panel a. The parallel relationship of the two great arteries was also demonstrated. In addition, a VSD in large size could also be identified. AO, aorta; LV, left ventricle; PA, pulmonary artery; RV, right ventricle; TGA, transposition of the great arteries; VSD, ventricular septal defect

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