Broadband lung dielectric properties over the ablative temperature range: Experimental measurements and parametric models.

ABSTRACT:

Purpose

Computational models of microwave tissue ablation are widely used to guide the development of ablation devices, and are increasingly being used for the development of treatment planning and monitoring platforms. Knowledge of temperature-dependent dielectric properties of lung tissue is essential for accurate modeling of microwave ablation (MWA) of the lung.

Methods

We employed the open-ended coaxial probe method, coupled with a custom tissue heating apparatus, to measure dielectric properties of ex vivo porcine and bovine lung tissue at temperatures ranging between 31 and 150  ∘ C, over the frequency range 500 MHz to 6 GHz. Furthermore, we employed numerical optimization techniques to provide parametric models for characterizing the broadband temperature-dependent

SUBMITTER: Sebek J 

PROVIDER: S-EPMC6893909 | biostudies-literature | 2019 Oct

REPOSITORIES: biostudies-literature