Identification of Carotid Plaques Composition through a Compact Microwave Sensor
Résumé
Microwave biosensor brings the prominent promise of
dielectric parameters detection to characterize biological tissues. This
promise has already been materialized in multiple fields of healthcare
and body parts. Yet when it comes to carotid plaque sticking to basic
simulations, and correlating that with real-time measurements is
arguably much harder. Measuring and simulating carotid plaques
comprise a wide range of sub-problems, such as the heterogeneity and
uniquity of each plaque, the different thicknesses, and various areas
of interest. In this study, a miniaturized microwave biosensor was
proposed to perform dielectric characterizations of atheromatous
plaques present in arterial tissues. The designed microwave biosensor
employs a Complementary Split Ring Resonator (CSRR) topology at
2.3 GHz. Electromagnetic modeling and experimental
characterization have been carried out to validate the developed
equivalent electrical model with very good precision and to calibrate
it using other material. Atheroma measurements were achieved and
compared to data obtained by simulation and then correlated with the
histology results.
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