摘要
目的：通过提高辐射器的性能进而增加肿瘤热疗的适应范围和疗效。方法：在ＭａｘＳＡＲ（最大比吸收率）处增加垫片测量ＥＨＳ，不同介质作藕合剂测量ＥＨＤ。结果：增加垫片可不同程度增加ＥＳＨ，最好的提高了４２．９％，水作介质最好，ＥＨＤ约为 ３ ｃｍ。结论：通过降低热点区 ＳＡＲ值的方法增加 ＥＨＳ，用表面冷却法增加 ＥＨＤ，提高微波辐射器性能。
Objective: To make Hyperthermia more effective in the treatment of tumor by improving the capabilities of microwave applicator. Methods: Comparing the EHS values at the location of Max SAN between adding or not adding a cushion there. Measuring EHD in different kinds of medium as bolus. Results: EHS were enlarged in some degree by adding a cushion at the location of Max SAR, the best is 42.9%. Water was the most effective medium as bolus, its EHD was 3 cm approximately. Conclusion: With the enlarged EHS by decrease the SAR at hot spot and increased EHD by means of water superficial cooling, the MW-applicator capabilities can be improved.
出处
《河南医学研究》
CAS
2000年第4期313-314,共2页
Henan Medical Research
基金
河南省医学科学院科研基金资助项目(961200615)
关键词
微波辐射器
垫片
介质
加温面积
肿瘤热疗
microwave applicator cushion
medium
Effective Heating Surface(EHS)
Effective Heating Depth(EHD)
