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dc.contributor.authorPorter, Emily
dc.contributor.authorO'Halloran, Martin
dc.date.accessioned2018-03-22T09:51:11Z
dc.date.available2018-03-22T09:51:11Z
dc.date.issued2017-08-17
dc.identifier.citationPorter, E., & O’Halloran, M. (2017). Investigation of Histology Region in Dielectric Measurements of Heterogeneous Tissues. IEEE Transactions on Antennas and Propagation, 65(10), 5541-5552. doi: 10.1109/TAP.2017.2741026en_IE
dc.identifier.issn0018-926X
dc.identifier.urihttp://hdl.handle.net/10379/7217
dc.description.abstractThe dielectric properties of tissues are the key parameters in electromagnetic medical technologies. Despite the apparent simplicity of the dielectric measurement process, reported data have been inconsistent for heterogeneous tissues. Dielectric properties may be attributed to heterogeneous tissues by identifying the tissue types that contributed to the measurement through histological analysis. However, accurate interpretation of the measurements with histological analysis requires first defining an appropriate histology region to examine. Here, we investigate multiple definitions for the probe sensing depth and uniquely calculate this parameter for measurements with a realistic range of tissues. We demonstrate that different sensing depth definitions are not equivalent, and may introduce error in dielectric data. Last, we propose an improved definition, given by the depth to which the probe can detect changes in the tissue sample, within the measurement uncertainty. We equate this sensing depth with histology depth, thus supporting the need of having the tissue region that contributes to the dielectric data be the same as that which is analyzed histologically. This paper demonstrates that, for these tissues, the histology depth is both frequency and tissue dependent. Therefore, the histology depth should be selected based on the measurement scenario; otherwise, inaccuracies in the data may result.en_IE
dc.description.sponsorshipThe authors would like to thank P. M. Meaney of Dartmouth College for his support and discussions related to this research. They would also like to thank A. Santorelli and M. Popovic of McGill University, Canada, for supplying the tissue-mimicking phantoms used in this paper and I. Merunka of Czech Technical University, Prague, Czech Republic, for his input on the uncertainty analysis of the system. This paper was developed in the framework of COST Action MiMed (TD1301).
dc.formatapplication/pdfen_IE
dc.language.isoenen_IE
dc.publisherInstitute of Electrical and Electronics Engineers (IEEE)en_IE
dc.relation.ispartofIeee Transactions On Antennas And Propagationen
dc.rightsAttribution-NonCommercial-NoDerivs 3.0 Ireland
dc.rights.urihttps://creativecommons.org/licenses/by-nc-nd/3.0/ie/
dc.subjectMICROWAVE THERMAL ABLATIONen_IE
dc.subjectBREAST-TISSUEen_IE
dc.subjectFREQUENCY-RANGEen_IE
dc.subjectLARGE-SCALEen_IE
dc.subjectGHZen_IE
dc.subjectLIVERen_IE
dc.subjectVIVOen_IE
dc.subjectSURGERIESen_IE
dc.titleInvestigation of histology region in dielectric measurements of heterogeneous tissuesen_IE
dc.typeArticleen_IE
dc.date.updated2018-03-16T18:17:11Z
dc.identifier.doi10.1109/TAP.2017.2741026
dc.local.publishedsourcehttp://dx.doi.org/10.1109/TAP.2017.2741026en_IE
dc.description.peer-reviewedpeer-reviewed
dc.internal.rssid14043716
dc.local.contactEmily Porter. Email: emily.porter@nuigalway.ie
dc.local.copyrightcheckedYes
dc.local.versionACCEPTED
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Except where otherwise noted, this item's license is described as Attribution-NonCommercial-NoDerivs 3.0 Ireland