胃癌是世界上最常见的四大恶性肿瘤之一犤1犦,5年生存率受多种因素影响,其中主要影响因素为肿瘤的分期犤2犦。因此准确的术前分期,对指导临床制定治疗方案、评估手术切除的可能性、估计预后等有重要意义。而胃癌的术前诊断长期以来主要依赖上消化道钡餐及纤维胃镜检查,上述影像 Gastric cancer is one of the four most common malignant tumors in the world. The 5-year survival rate is affected by many factors, of which the main influencing factor is the tumor staging 犤 2 犦. Therefore, accurate preoperative staging, clinical guidance for the development of treatment options to assess the possibility of surgical resection, prognosis and other important. The preoperative diagnosis of gastric cancer has long been mainly dependent on upper gastrointestinal barium meal and gastroscopy, the above image