Prenatal intervention in vein of Galen aneurysmal malformation via transuterine ultrasound‐guided fetal embolization: call for global registry

Figure S1. Three-Dimensional Color Doppler Ultrasound of the VGAM capturing the complex vascular architecture. The aneurysmal dilation is depicted in a reddish hue, indicating arterial blood flow, whereas the adjacent venous structures are represented in blue, reflecting venous blood flow. Figure S2. Multiplanar and Three-Dimensional Color Doppler Ultrasound Imaging of the VGAM. The multiplanar views (top left and right) display the turbulent flow within the VGAM, highlighted by a mix of red and blue colors representing different blood flow velocities and directions. The bottom left image provides a sagittal view, emphasizing the depth and flow pattern of the malformation. The bottom right image offers a three-dimensional reconstruction, allowing for a comprehensive assessment of the VGAM's spatial configuration and its relation to surrounding cerebral structures. Figure S3. Post procedural image of the fetal head demonstrating significant reduction in the VGAM size. Figure S4. Post-Autopsy Visualization of VGAM with Deployed Coils Figure S5. A- X-Ray of the saggital section of Neonatal Head with Deployed Embolization Coils in VGAM; B - X-Ray of the coronal section of Neonatal Head with Deployed Embolization Coils in VGAM Figure S6. The PRISMA 2020 flow diagram Videoclip S1. A – Two dimensional sagittal section of fetal head demonstrating the Vein of Galen malformation; B- Color Doppler ultrasound demonstrating the vascularity within the Vein of Galen malformation Videoclip S2. Two dimensional gray scale ultrasound of the sagittal section of the fetal neck and thorax demonstrating diltation of the internal jugular veins and superior vena cava Videoclip 3A and 3B. Video demonstrating ultrasound guided trans catheter deployment of embolization coils into the VGAM Table S1. Literature search strategy Please note: The publisher is not responsible for the content or functionality of any supporting information supplied by the authors. Any queries (other than missing content) should be directed to the corresponding author for the article.