International Journal of Clinical & Medical Images

A lineer high frequency transducer (10–18MHz, Esaote, Florence, Italy) placed on the suprasternal notch, with the patient lying supine and in the sniffing position. The thyroid gland lies in front of the trachea (right side) and Esophagus (right side). The esophageal wall can be seen expand and compress with swallowing in this moving image. The concentric layers of esophagus results in a characteristic “bulls eye” appearance on the ultrasound. Dynamic imaging is better to accurate identification of Esophagus.