Katzir A, Bowman H F, Asfour Y, Zur A, Valeri C R
IEEE Trans Biomed Eng. 1989 Jun;36(6):634-7. doi: 10.1109/10.29459.
Hypothermia is a condition which results from prolonged exposure to a cold environment. Rapid and efficient heating is needed to rewarm the patient from 32-35 degrees C to normal body temperature. Hyperthermia in cancer treatment involves heating malignant tumors to 42.5-43.0 degrees C for an extended period (e.g., 30 min) in an attempt to obtain remission. Microwave or radio frequency heating is often used for rewarming in hypothermia or for temperature elevation in hyperthermia treatment. One severe problem with such heating is the accurate measurement and control of temperature in the presence of a strong electromagnetic field. For this purpose, we have developed a fiberoptic radiometer system which is based on a nonmetallic, infrared fiber probe, which can operate either in contact or noncontact mode. In preliminary investigations, the radiometer worked well in a strong microwave or radiofrequency field, with an accuracy of +/- 0.5 degrees C. This fiberoptic thermometer was used to control the surface temperature of objects within +/- 2 degrees C.
体温过低是长时间暴露在寒冷环境中所导致的一种状况。需要快速且有效地加热，以便将患者体温从32至35摄氏度回升至正常体温。癌症治疗中的高温疗法是将恶性肿瘤加热至42.5至43.0摄氏度并持续一段时间（例如30分钟），以期实现缓解。微波或射频加热常用于体温过低时的复温或高温疗法中的升温。这种加热存在的一个严重问题是在强电磁场环境下准确测量和控制温度。为此，我们开发了一种基于非金属红外光纤探头的光纤辐射计系统，该探头可在接触或非接触模式下工作。在初步研究中，辐射计在强微波或射频场中运行良好，精度为±0.5摄氏度。这种光纤温度计用于将物体表面温度控制在±2摄氏度以内。
