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Fig. 4 | CVIR Endovascular

Fig. 4

From: Superior hypogastric nerve block (SHNB) for pain control after uterine fibroid embolization (UFE): technique and troubleshooting

Fig. 4

While arterial opacification can be avoided by performing an aortogram and defining arterial vascular anatomy, it is difficult to define venous outlines and inadvertent venous opacification can occur. a Shows needle in the left common iliac vein (black arrow) with opacification of the IVC (black asterisk) and even contralateral common iliac vein (white arrow). b The a characteristic triangular blob of contrast for SHNB is seen (white triangle). However the external iliac vein also opacified (black arrow). Needle was repositioned and SHNB performed

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