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ISSN Печать: 0278-940X
ISSN Онлайн: 1943-619X
Indexed in
Review of the Dielectric Properties of Animal and Human Tumors Determined from In Vivo Measurements
Краткое описание
In this article, we combine a review of the wide range of tissue dielectric studies and applications (e.g., safety, imaging, therapy) being pursued by the bioelectromagnetics community with a description of one specific application of dielectric measurements (in vivo tumor classification). The tumor measurements were acquired over a frequency range of 0.01–4.0 GHz using a technique based on the impedance change recorded by a short antenna when placed near or in a lossy dielectric. Substantial differences (up to 300%) were found between the dielectric properties of tumors (mammary adenocarcinoma, melanoma, lung carcinoma, glioblastoma and ependymoblastoma) and normal host tissues. Such differences reflect the known heterogeneity of abnormal cell growth in cancer. In addition, in vivo human measurements of breast carcinoma, normal skin and breast tissue indicate that a maximum differential power absorption (30% higher in tumor) occurs between 1.0 and 2.0 GHz. This information, when combined with tumor size, geometry, and anatomical location, enable the design and development of effective systems for the detection of tumors and for electromagnetically induced differential hyperthermia treatment. Finally, we also discuss these results in the context of other impedance and dielectric approaches used to characterize normal and neoplastic cells and tissues.
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Farina Laura, Ruvio Giuseppe, O'Halloran Martin, Lung Tumor mimicking models for usability validation of transbronchial Microwave Thermal Ablation procedures, 2021 IEEE International Conference on Microwaves, Antennas, Communications and Electronic Systems (COMCAS), 2021. Crossref
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Rivas Loya Ricardo, Jutte Paul C., Kwee Thomas C., van Ooijen Peter M. A., Computer 3D modeling of radiofrequency ablation of atypical cartilaginous tumours in long bones using finite element methods and real patient anatomy, European Radiology Experimental, 6, 1, 2022. Crossref