A CT-visible Thermal Ablation Phantom

TY - GEN

T1 - A CT-visible Thermal Ablation Phantom

AU - Li, Rui

AU - Jackovatz, Christopher

AU - Xu, Sheng

AU - Wood, Bradford J.

AU - Ren, Hongliang

AU - Nilsson, Kent R.

AU - Tse, Zion T.H.

N1 - Funding Information: This project was sponsored by the National Science Foundation Research Experiences for Undergraduates (REU) Site program under Grant No. EEC-1659525. This study was also supported in part by the National Science Foundation (NSF) I-Corps Team Grant (1617340), the American Society for Quality Dr. Richard J. Schlesinger Grant, and the PHS Grant UL1TR000454 from the Clinical and Translational Science Award Program. Funding Information: *This project was sponsored by the National Science Foundation Research Experiences for Undergraduates (REU) Site program under Grant No. EEC-1659525. This study was also supported in part by the National Science Foundation (NSF) I-Corps Team Grant (1617340), the American Society for Quality Dr. Richard J. Schlesinger Grant, the PHS Grant, UL1TR000454 from the Clinical and Translational Science Award Program. Publisher Copyright: © 2020 IEEE. Copyright: Copyright 2021 Elsevier B.V., All rights reserved.

PY - 2021/1/21

Y1 - 2021/1/21

N2 - 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.

AB - 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.

KW - ablation zone

KW - thermal ablation

KW - tissue-mimicking phantom

UR - http://www.scopus.com/inward/record.url?scp=85100249596&partnerID=8YFLogxK

U2 - 10.1109/ISMR48331.2020.9312941

DO - 10.1109/ISMR48331.2020.9312941

M3 - Conference contribution

AN - SCOPUS:85100249596

T3 - 2020 International Symposium on Medical Robotics, ISMR 2020

SP - 30

EP - 35

BT - 2020 International Symposium on Medical Robotics, ISMR 2020

PB - IEEE

T2 - 2020 International Symposium on Medical Robotics, ISMR 2020

Y2 - 18 November 2020 through 20 November 2020

ER -