Meaney, P M; Gregory, A P; Lahtinen, T; Paulsen, K D (2020) Comments on “Investigation of Histology Region Dielectric Measurements of Heterogeneous Tissues. IEEE Transactions on Antennas and Propagation, 68 (1). pp. 615-616. ISSN 0018-926X

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Abstract

In the article, “Investigation of histology region in dielectric measurements of heterogeneous tissues,” by Porter and O’Halloran, the authors utilize a flexible phantom in a layered material dielectric property analysis to quantify the effective sensing volume of a coaxial dielectric probe. Ostensibly, this test has been used by others to characterize the region for which percent variation in the material composition in front of the probe corresponds to percent variation in the computed effective dielectric properties. By employing a compressible material, the authors fail to isolate features that are attributable solely to the probe, itself, and inadvertently incorporate confounding characteristics associated with the compressible nature of the material. The net effect is to exaggerate the probe’s sensing volume, which undermines the conclusions drawn from the subsequent tissue dielectric property studies.

Item Type:	Article
Keywords:	Probes, dielectric measurement, dielectrics, biomedical measurement, sensors, solids, liquids
Subjects:	Electromagnetics > Electromagnetic Materials
Divisions:	Electromagnetic & Electrochemical Technologies
Identification number/DOI:	10.1109/TAP.2019.2950078
Last Modified:	23 Jan 2020 14:25
URI:	https://eprintspublications.npl.co.uk/id/eprint/8632