Ultrasound for the Anesthesiologists: Present and Future
Figure 2
Vocal cords assessment: SM: strap muscles; TC: thyroid cartilage; AC: anterior commissure; PC: posterior commissure; and VC: vocal cords. (a) Vocal cords are abducted on inspiration, (b) adducted partially during expiration, (c) and are tightly closed when asking the patient to say “Eeeee.” Linear transducer was placed transversely on the midline of the cricothyroid membrane.
