| 人体皮下肿瘤微波反射特性的解析表示 |
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| 引用本文： | 王亦方,吴祥应,胡斌杰,张国基,赖声礼. 人体皮下肿瘤微波反射特性的解析表示[J]. 中国生物医学工程学报, 2000, 19(3): 318-324 |
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| 作者姓名： | 王亦方 吴祥应 胡斌杰 张国基 赖声礼 |
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| 作者单位： | 华南理工大学电子与通信工程学院,广州 |
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| 基金项目： | 国家自然科学基金!(6 96 710 2 2 )，广东省自然科学基金!(6 916 5 )项目资助 |
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| 摘 要： | 本文讨论人体皮下肿瘤的微波反射特性的解析表示。开口矩形波导探头与人体直接接触，建立时域有限差分法（ＦＤＴＤ）分析模型，进行严格的数值分析得到探头的微波反射系数。发现这一结构的组织模型中，肿瘤的大小和深度与反射系数之间存在一种简单的解析公式，从而避开了求解逆问题所要遇到的固有困难，使这类问题得到简化，这对人体表层组织的微波成像具有重要意义。
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| 关 键 词： | 皮下肿瘤 反射特性 微波成像 FDTD模型 |
The formular resolution for microwave reflection charactistics of human body subcutaneous tumor |
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| Wang Yifang,Wu Xiangying,Hu Binjie,Zhang Guoji,Lai Shengli. The formular resolution for microwave reflection charactistics of human body subcutaneous tumor[J]. Chinese Journal of Biomedical Engineering, 2000, 19(3): 318-324 |
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| Authors: | Wang Yifang Wu Xiangying Hu Binjie Zhang Guoji Lai Shengli |
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| Abstract: | This paper discusses the formula resolution for microwave reflection characteristics of human body subcutaneous tumor. An open-ended rectangular waveguide probe directly get in touch with human body epidermis. Through building FDTD analysis model, the microwave reflection modulus is obtained by strict numerical analysis. Then a simple resolution formula is fitted to the relationship between the depth and diameter of the tumor with the reflection modulus of the model. Therefore, its inherence difficulties in solving athwart problem and noninteger element grid of FDTD method can be avoided. The results are important for microwave imaging of human body epidermis tissue. |
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| Keywords: | Subcutaneous tumor Reflection characteristics Microwave imagin |
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