A continuum thermomechanical model of in vivo electrosurgical heating of hydrated soft biological tissues.

ABSTRACT: Radio-frequency (RF) heating of soft biological tissues during electrosurgical procedures is a fast process that involves phase change through evaporation and transport of intra- and extra-cellular water, and where variations in physical properties with temperature and water content play significant role. Accurately predicting and capturing these effects would improve the modeling of temperature change in the tissue allowing the development of improved instrument design and better understanding of tissue damage and necrosis. Previous models based on the Pennes' bioheat model neglect both evaporation and transport or consider evaporation through numerical correlations, however, do not account for changes in physical properties due to mass transport or phase change, nor capture the pressure

SUBMITTER: Karaki W 

PROVIDER: S-EPMC6366672 | biostudies-literature | 2018 Dec

REPOSITORIES: biostudies-literature