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 - Publisher Copyright:
© 2020 IEEE.
PY - 2020/11/18
Y1 - 2020/11/18
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
UR - http://www.scopus.com/inward/citedby.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 - Institute of Electrical and Electronics Engineers Inc.
T2 - 2020 International Symposium on Medical Robotics, ISMR 2020
Y2 - 18 November 2020 through 20 November 2020
ER -