Ultrasound-Guided Intervention for Treatment of Trigeminal Neuralgia: An Updated Review of Anatomy and Techniques

Figure 3

Sonoanatomy and ultrasound-guided injection technique for the supraorbital nerve: (a) the position of the transducer (yellow rectangle), (b) ultrasound imaging of the supraorbital nerve emerging from the supraorbital notch, (c) introducing the needle in the lateral-to-medial direction using the in-plane approach to target the supraorbital nerve, and (d) power Doppler image of the supraorbital vessels. The asterisk () denotes the supraorbital notch on the face. The empty white arrows denote the supraorbital margin. The solid white arrow denotes the supraorbital nerve. The yellow dashed arrow denotes the needle trajectory. CSM: corrugator supercilii muscle and M: medial side. All the pictures were obtained from the face of the first author.

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