2019
DOI: 10.1088/2057-1976/aafc1a
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Characterization of the dielectric properties of biological tissues using mixture equations and correlations to different states of hydration

Abstract: The aim of this study was to characterize the hydration fractions of biological tissues and to model these accurately from mixture equations. Hydration fractions, better known as volume fractions, are based on quantification of tissue hydration and accurate knowledge about the physiological composition of tissue fluids. Data on weight loss percentages for excised muscle and adipose tissue from a previous study were utilized for this purpose. The Bruggeman and Maxwell Garnett equations were then used to charact… Show more

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Cited by 12 publications
(19 citation statements)
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“…The accurate knowledge of these properties can help predict the electromagnetic energy deposition and the distribution of the temperature increase in the tissue, in order to optimise treatment plans [4][5][6][7]. While dielectric properties have been widely studied [8][9][10][11][12][13][14][15][16][17][18][19][20], less systematised investigations have been conducted to characterise the thermal properties of biological tissues and their changes with temperature.…”
Section: Introductionmentioning
confidence: 99%
“…The accurate knowledge of these properties can help predict the electromagnetic energy deposition and the distribution of the temperature increase in the tissue, in order to optimise treatment plans [4][5][6][7]. While dielectric properties have been widely studied [8][9][10][11][12][13][14][15][16][17][18][19][20], less systematised investigations have been conducted to characterise the thermal properties of biological tissues and their changes with temperature.…”
Section: Introductionmentioning
confidence: 99%
“…The liquid nature of tissue phantoms allows for significant flexibility in sample measurements, and the container material can vary depending on the application. This paper adopts a mixture equations procedure that is employed by Pollacco et al (2019) which was used for developing tissue-mimicking solutions for muscle and adipose [3]. The study correlates findings from experimental observations and theoretical results by employing both Bruggeman and Maxwell Garnett mixture equations at different hydration states.…”
Section: Introductionmentioning
confidence: 88%
“…Relevant to the effective medium theory, a mixing rule was employed to model the dielectric properties of the tissue under test. This method has resulted in accurate mimicking solutions of in vivo and ex vivo tissue in different states of hydration [15]. Assuming the tissues as a two-phase mixture, the models were generated considering a dry inclusion phase and a fluid-based host environment.…”
Section: B Tissue Mimic Preperationmentioning
confidence: 99%