In the past

due to the interference of gastric contents and gases

transabdominal ultrasound examination has not been routinely used for the diagnosis of gastric diseases. With the advent of new oral contrast agents and the development of ultrasound technology

the detection rate and diagnostic accuracy of abnormal gastric wall lesions have been greatly improved. Transabdominal ultrasound

as a noninvasive imaging technology

is being recognized and accepted by more clinicians and plays a prominent role in the diagnosis and screening of gastric cancer clinically. However

there is still a lack of multi-center

large sample and high-quality prospective studies. This article briefly described the development of oral contrast-enhanced ultrasound agents

the application of gastric ultrasound in diagnosis and screening of gastric cancer

and the prospect for the future.