Fig. 1From: Real-time ultrasound-guided stellate ganglion block for migraine: an observational studyUltrasonic exploration of stellate ganglion. A: Patient’s position and placement of ultrasound probe. B: Ultrasound image of the cervical structure during stellate ganglion block.1, thyroid; 2, common carotid artery; 3, internal jugular vein; 4, brachial plexus; 5, vertebral artery; 6, longus colli muscleBack to article page