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1.加温方法目前临床上普遍应用超声波、微波和射频电磁波等,直接对肿瘤组织进行局部加温治疗。与电磁波加温疗法不同,超声波加温疗法可在不增高体表温度的情况下,使位于机体深部的肿瘤组织温度升高;且该疗法不存在金属测温探头干扰能量场的问题,故可提高测温的精确度。但因超声波穿过肠道内的气体及骨组织后能量锐减,故目前该疗法加温深度仅达数厘米。为提高加温深度今后还需将超声波加温面积缩成点状,从而能进行扫描加温的方法。因产生微波的振荡器体积较小,故微波加温疗法适用于食管、直肠、阴道及子宫等空腔脏器肿瘤的加温治疗。如将振荡器制成针状,也可用于肝癌、脑瘤等实质脏器肿瘤的加温治疗。但微波进入体内后,能
1. Warming Methods Currently, ultrasonics, microwaves, radio frequency electromagnetic waves, etc. are commonly used in clinics to directly treat tumor tissue locally. Unlike the electromagnetic heating therapy, the ultrasonic heating therapy can increase the temperature of the tumor tissue located in the deep part of the body without increasing the body surface temperature; and there is no problem that the metal temperature probe interferes with the energy field. Improve the accuracy of temperature measurement. However, due to the sharp drop in energy after passing through the gas and bone tissue in the intestine, the heating depth of the therapy is currently only a few centimeters. In order to increase the depth of heating, it is also necessary to reduce the ultrasonic heating area to a spot shape so that a scanning heating method can be performed. Due to the smaller volume of the oscillator that generates microwaves, microwave heating is suitable for the warming treatment of hollow organs such as esophagus, rectum, vagina, and uterus. If the oscillator is made needle-shaped, it can also be used for warming treatment of solid tumors such as liver cancer and brain tumors. But after microwaves enter the body,