The antrum has a small hypoechoic cavity with very little fluid and no solid material or air. The walls of the antrum appear thick and non-distended. This is the appearance in the fasted state.
Reproduced with permission from: Van de Putte P, Perlas A. Image Acquisition: Scanning Technique. Gastric Ultrasound. Copyright © 2018. Available at:
https://gastricultrasound.org (Accessed on June 29, 2018).
