[Expert consensus on standardized process of imaging examination and diagnosis of gastric cancer (2022 edition)]

Following with the development of individualized treatment of gastric cancer, the standardized radiological evaluation of gastric cancer is becoming more and more important. However,as a hollow viscera, the stomach is not fixed in shape and has a complex relationship with adjacent organs in the upper abdomen, which lead to the challenges in the radiological detection, localization, diagnosis and differential diagnosis, classification and staging, and evaluation of treatment response of gastric cancer. To deal with the challenges and address to clinical concerns, this consensus included the domestic experts on the frontline of clinical diagnosis and treatment of gastric cancer, and invited medical and surgical experts to participate in the inspection. The whole process was sorted out around five key points of gastric cancer radiological evaluation, including the selection of modalities, predisposal specification, examination standardization, reporting regulation and procedure in the participation of multidisciplinary team. All the experts voted by secret ballot to determine the level of evidence and recommendation. It is hoped that it can be used as a standard reference for radiological examination and diagnosis of gastric cancer.