热疗法已用作癌症放射治疗的物理增敏手段,但能否用于内脏肿瘤,一直为临床所关注。胃癌是我国多见肿瘤,常因病期较晚致外科手术困难,又多为腺癌,放射敏感性不佳。本文利用猪模拟胃癌的上腹部照射野,行434MHz微波热疗,观察上腹部深部器官的热损伤,进一步探讨微波用于深部器官低度敏感性癌症放射增敏的可能性。 Heat therapy has been used as a physical sensitization method for cancer radiotherapy, but whether it can be used for visceral tumors has always been of clinical concern. Gastric cancer is the most common tumor in China. It is often due to the late stage of surgery that causes difficulty in surgery, and it is mostly adenocarcinoma with poor radiosensitivity. In this study, pigs were used to simulate the epigastric irradiation field of gastric cancer, and 434 MHz microwave hyperthermia was performed to observe the thermal damage of deep organs in the upper part of the abdomen. The possibility of microwave sensitization for low-sensitivity cancer in deep organs was further explored.