Fig. 2
From: First-in-human clinical study of an embryonic stem cell product for urea cycle disorders

Embolization using a vascular plug under IVR. A Macroscopic view of AmplatzerTM Vascular plug used for embolization. To avoid systemic circulation of HLCs, an open ductus venosus is closed before injection. B Embolization of ductus venosus. Ductus venosus is closed 15–20 days after birth [26]. The ductus venosus was patent in Cases 1 and 2 and thus was embolized before the transplantation. C AmplatzerTM Vascular plug in the explanted liver. D High-power view of AmplatzerTM Vascular plug (C, dotted rectangle)