A CT-visible Thermal Ablation Phantom

Rui Li, Christopher Jackovatz, Sheng Xu, Bradford J. Wood, Hongliang Ren, Kent R. Nilsson, Zion T.H. Tse

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Thermal ablation by radio frequency (RF) is widely used in the minimally invasive treatment of focal tumors. Since different ablation devices often have different thermal properties, it is vital to create a standard to help physicians compare devices and train new physicians. Currently, the usage of existing approaches (such as MRI thermometry and tissue phantoms) is often limited by the cost and inability to collect quantifiable performance data. In this study, a computed tomography (CT) imageable phantom was developed to provide quantitative assessments of thermal ablations. The experiments proved that there are linear correlations between the impedance and salt concentration, and between the size of the ablation zone and generator power. However, there is no relationship between the size of the ablation zone and salt concentration. The fabricated phantom can simulate tissue ablation and provide valuable information for both training and device characterization.

Original languageEnglish (US)
Title of host publication2020 International Symposium on Medical Robotics, ISMR 2020
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages30-35
Number of pages6
ISBN (Electronic)9781728154886
DOIs
StatePublished - Nov 18 2020
Externally publishedYes
Event2020 International Symposium on Medical Robotics, ISMR 2020 - Atlanta, United States
Duration: Nov 18 2020Nov 20 2020

Publication series

Name2020 International Symposium on Medical Robotics, ISMR 2020

Conference

Conference2020 International Symposium on Medical Robotics, ISMR 2020
CountryUnited States
CityAtlanta
Period11/18/2011/20/20

Keywords

  • ablation zone
  • thermal ablation
  • tissue-mimicking phantom

ASJC Scopus subject areas

  • Artificial Intelligence
  • Biomedical Engineering
  • Control and Optimization
  • Surgery

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