Technique of high-frequency endolaryngeal ultrasound

Objective: We describe in detail the technique of in vivo endolaryngeal ultrasound during microlaryngoscopy, offering a number of practical suggestions which may be of use, especially to the otolaryngologist. Methods: Endosonography is a non-invasive imaging technology usually applied for the assessment of local tumour growth and regional lymph node metastases in the digestive tract. Conclusions: Due to a penetrating depth of up to 25 mm, and a high tissue resolution, endosonography also qualifies for use in the larynx. The technique may have a potentially important role in the intra- and post-operative investigation of laryngeal lesions bigger than 3 mm.