1. Department of Medical Ultrasounics, East division of the First Affiliated Hospital of Sun Yat-sen University, Guangzhou, China

2. Department of Medical Ultrasonics, Ultrasonics Artificial Intelligence X-Lab, Institute of Diagnostic and Interventional Ultrasound, The First Affiliated Hospital of Sun Yat-Sen University, Guangzhou, China

3. Department of Gastrointestinal Surgery, The First Affiliated Hospital of Sun Yat-Sen University, Guangzhou, China

4. Research Center of GE Healthcare, Shanghai., China