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一、加温原理、加温方法温热疗法目前存在的问题有以下两点,①加温方法。如何把肿瘤的温度上升到治疗温度(42～45℃)而又尽量保持邻近正常组织的温度无明显上升;②测温方法,监测实际上肿瘤被加温到什么程度。特别是对于深部肿瘤来说,这两个问题已成为临床应用的障碍。食道癌也是深部肿瘤,并且周围有大血管、心脏、肺等重要脏器包围,用一般体外加温方法不能把肿瘤确实加温,因此发明了腔内加温法,即在食道内腔插入电极,使之与体外电极之间的RF(射频)波振荡,限制内腔电极周围的加温区域。
First, heating principle, warming method The current problems exist in thermotherapy are the following two points, 1 heating method. How to raise the temperature of the tumor to the treatment temperature (42 ~ 45 °C) while keeping the temperature of the adjacent normal tissue as much as possible without any significant increase; 2 The temperature measurement method monitors how much the tumor is actually warmed. Especially for deep tumors, these two problems have become obstacles to clinical application. Esophageal cancer is also a deep tumor, surrounded by important organs such as large blood vessels, heart, lungs, etc., and the tumor cannot be warmed up by general in vitro heating method. Therefore, an intracavitary warming method was invented, ie, an electrode was inserted in the esophageal lumen. , to make RF (radio frequency) wave oscillations with external electrodes, limiting the warming area around the internal cavity electrodes.