Figure 2. Postnatal CT Angiography Images of IVC Aneurysm
(a, b) Coronal views displaying the IVC aneurysm located in the distal segment, highlighted by a red rectangle.
(c) Coronal view showing the proximal IVC near the heart, appearing normal without signs of aneurysm.
Supplementary Figure S1 . Axial view obtained through transabdominal 2D fetal echocardiography demonstrating cardiomegaly. The image shows measurements of the fetal thoracic circumference (ThC) and a cardiothoracic ratio (HrtC/ThC) of 65%.
Supplementary Figure S2 . Axial view obtained through transabdominal 2D fetal echocardiography illustrating a foramen ovale aneurysm. The image shows the distal extension of the foramen ovale flap towards the mitral valve.
Supplementary Videoclip S1 . Sagittal view obtained through transabdominal 2D fetal echocardiography. The videoclip reveals a prominent IVC aneurysm, with the normal course of the aorta observed between 6 and 8 seconds.
Supplementary Videoclip S2. Sagittal view in Doppler mode obtained through transabdominal 2D fetal echocardiography, illustrating venous blood flow within the inferior vena cava (IVC), highlighting the aneurysmal dilation.