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

Figure 5

Sonoanatomy and ultrasound-guided injection technique for the mental nerve: (a) the transducer position (yellow rectangle), (b) ultrasound imaging of the mental nerve (white solid arrow), (c) introducing the needle from the lateral side toward the midline using the in-plane approach to target the mental nerve, and (d) power Doppler image used to identify the mental vessels. The empty white arrows denote the body of the mandible. The asterisk () denotes the mental foramen on the face. The yellow dashed arrow denotes the needle trajectory. DLIM: depressor labii inferioris muscle; DAOM: depressor anguli oris muscle; JF: jowl fat; M: medial side. All the pictures were obtained from the face of the first author.

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