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Fig. 1 | CVIR Endovascular

Fig. 1

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

Fig. 1

Demonstration of the SHP and the relevant radiographic and vascular anatomy as a guide to appropriate needle positioning and nerve blockade targeting during a SHNB. a The SHP (darker shade oval) targeted during the SHNB mainly lies at the L5 vertebra. b, c, d Aortic bifurcation and relevant radiographic anatomy. In majority of cases (63–80%) the bifurcation is at the level of L4 vertebra or L4–5 disc (c). B and D represent the less commonly seen high and low bifurcations. e, f Demonstration of iliocaval confluence and relevant radiographic anatomy. In 60–70% cases the iliocaval junction is seen between L4 and L5-S1 disc (E), specifically at the upper third and at right lateral third of the L5 vertebral body (F)

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