THERAPEUTIC CLASS
Transcutaneous Sonography for Detection of the Cervical Vagus Nerve
Cervical vagus nerve is not identified by computed tomography or magnetic resonance imaging. Transcutaneous sonography may
be the best imaging study to evaluate the cervical vagus nerve. A 7 to 18 MHz linear array transducer was placed transversely on
the lateral neck focusing on the carotid sheath from the clavicle level upward to the digastric muscle level bilaterally. The grayscale
technique was used, with the scan setting for the thyroid gland. Between January 2015 and March 2016, 314 patients with
628 cervical vagus nerves were enrolled, including 104 men and 210 women
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