用超宽带时域反射技术测量材料/组织介电常数

2010 3rd International Symposium on Applied Sciences in Biomedical and Communication Technologies (ISABEL 2010) Pub Date : 2010-11-01 DOI:10.1109/ISABEL.2010.5702911

M. Strackx, E. D'Agostino, G. Vandenbosch, P. Reynaert, P. Leroux

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引用次数: 5

摘要

一个模拟超宽带(UWB)脉冲在多层组织结构中的反射的模型，已经实现并使用商用软件进行了验证。对不同层的介电常数进行了顺序变化，并分析了相应的反射。在这些实验的基础上，设想使用脉冲超宽带以非侵入性的方式在体内测量复杂组织的介电常数。最后，我们将把这项技术应用于放射治疗，试图将介电常数的变化与吸收的辐射剂量联系起来。提出了一种时域反射测量方法。

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Measuring material/tissue permittivity by UWB Time-domain Reflectometry techniques

A model for simulating reflections of ultrawideband (UWB) pulses in multilayered tissue structures, has been implemented and verified using commercially available software. The permittivity of the different layers was altered sequentially and the corresponding reflections have been analyzed. Building on these experiments, the use of pulsed UWB is envisaged for the in-vivo measurement of complex tissue permittivity, in a non invasive way. Eventually, we will apply this technique to radiotherapy, trying to correlate the changes in permittivity with the absorbed radiation dose. A measurement setup using Time-Domain Reflectometry (TDR) is proposed.

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来源期刊

2010 3rd International Symposium on Applied Sciences in Biomedical and Communication Technologies (ISABEL 2010)

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