Towards Real-Time Monitoring of Thermal Ablation Lesions in Liver Using Microwave Imaging

Sunil Gaddam; Poulami Samaddar; Keerthy Gopalakrishnan; Devanshi Damani; Suganti Shivaram; Shuvashis Dey; Dipankar Mitra; Sayan Roy; Shivaram P. Arunachalam

doi:10.1109/USNC-URSI52151.2023.10237995

Towards Real-Time Monitoring of Thermal Ablation Lesions in Liver Using Microwave Imaging

Sunil Gaddam, Poulami Samaddar, Keerthy Gopalakrishnan, Devanshi Damani, Suganti Shivaram, Shuvashis Dey, Dipankar Mitra, Sayan Roy, Shivaram P. Arunachalam

Gastroenterology and Hepatology

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Abstract

Minimally invasive ablative therapies have been used extensively to treat hepatic tumors in patients where surgical resections are not needed. Besides electroporation, ablation therapies induce extreme temperatures, i.e., hypothermia or hyperthermia, to cause irreversible damage to the tissue cells. The lesion volume created as a result depends on the temperature gradient in the tissue. Accurate and sensitive temperature monitoring is critical to optimize the treatment and reduce the risk of complications and extrahepatic injury. This study presents an approach to assess the tissue temperatures non-invasively using microwave imaging (MWI). A cross-section of a liver phantom is used for microwave imaging electromagnetic simulation at 915 MHz. Dielectric properties of porcine liver tissue at 915 MHz and varying temperatures are gathered from the literature. Point sources placed around the phantom model act as transmitters and receivers. Distorted Born Iterative Method (DBIM) was used to reconstruct the relative permittivity that is mapped to the temperature field and compared.

Original language	English (US)
Title of host publication	2023 IEEE International Symposium on Antennas and Propagation and USNC-URSI Radio Science Meeting, AP-S/URSI 2023 - Proceedings
Publisher	Institute of Electrical and Electronics Engineers Inc.
Pages	1109-1110
Number of pages	2
ISBN (Electronic)	9781665442282
DOIs	https://doi.org/10.1109/USNC-URSI52151.2023.10237995
State	Published - 2023
Event	2023 IEEE International Symposium on Antennas and Propagation and USNC-URSI Radio Science Meeting, AP-S/URSI 2023 - Portland, United States Duration: Jul 23 2023 → Jul 28 2023

Publication series

Name	IEEE Antennas and Propagation Society, AP-S International Symposium (Digest)
Volume	2023-July
ISSN (Print)	1522-3965

Conference

Conference	2023 IEEE International Symposium on Antennas and Propagation and USNC-URSI Radio Science Meeting, AP-S/URSI 2023
Country/Territory	United States
City	Portland
Period	7/23/23 → 7/28/23

Keywords

ablation
hepatic
insertion loss
lesion
liver
microwaves
reconstruction
temperature
tumor

ASJC Scopus subject areas

Electrical and Electronic Engineering

Access to Document

10.1109/USNC-URSI52151.2023.10237995

Cite this

Gaddam, S., Samaddar, P., Gopalakrishnan, K., Damani, D., Shivaram, S., Dey, S., Mitra, D., Roy, S., & Arunachalam, S. P. (2023). Towards Real-Time Monitoring of Thermal Ablation Lesions in Liver Using Microwave Imaging. In 2023 IEEE International Symposium on Antennas and Propagation and USNC-URSI Radio Science Meeting, AP-S/URSI 2023 - Proceedings (pp. 1109-1110). (IEEE Antennas and Propagation Society, AP-S International Symposium (Digest); Vol. 2023-July). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/USNC-URSI52151.2023.10237995

Towards Real-Time Monitoring of Thermal Ablation Lesions in Liver Using Microwave Imaging. / Gaddam, Sunil; Samaddar, Poulami; Gopalakrishnan, Keerthy et al.
2023 IEEE International Symposium on Antennas and Propagation and USNC-URSI Radio Science Meeting, AP-S/URSI 2023 - Proceedings. Institute of Electrical and Electronics Engineers Inc., 2023. p. 1109-1110 (IEEE Antennas and Propagation Society, AP-S International Symposium (Digest); Vol. 2023-July).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Gaddam, S, Samaddar, P, Gopalakrishnan, K, Damani, D, Shivaram, S, Dey, S, Mitra, D, Roy, S & Arunachalam, SP 2023, Towards Real-Time Monitoring of Thermal Ablation Lesions in Liver Using Microwave Imaging. in 2023 IEEE International Symposium on Antennas and Propagation and USNC-URSI Radio Science Meeting, AP-S/URSI 2023 - Proceedings. IEEE Antennas and Propagation Society, AP-S International Symposium (Digest), vol. 2023-July, Institute of Electrical and Electronics Engineers Inc., pp. 1109-1110, 2023 IEEE International Symposium on Antennas and Propagation and USNC-URSI Radio Science Meeting, AP-S/URSI 2023, Portland, United States, 7/23/23. https://doi.org/10.1109/USNC-URSI52151.2023.10237995

Gaddam S, Samaddar P, Gopalakrishnan K, Damani D, Shivaram S, Dey S et al. Towards Real-Time Monitoring of Thermal Ablation Lesions in Liver Using Microwave Imaging. In 2023 IEEE International Symposium on Antennas and Propagation and USNC-URSI Radio Science Meeting, AP-S/URSI 2023 - Proceedings. Institute of Electrical and Electronics Engineers Inc. 2023. p. 1109-1110. (IEEE Antennas and Propagation Society, AP-S International Symposium (Digest)). doi: 10.1109/USNC-URSI52151.2023.10237995

Gaddam, Sunil ; Samaddar, Poulami ; Gopalakrishnan, Keerthy et al. / Towards Real-Time Monitoring of Thermal Ablation Lesions in Liver Using Microwave Imaging. 2023 IEEE International Symposium on Antennas and Propagation and USNC-URSI Radio Science Meeting, AP-S/URSI 2023 - Proceedings. Institute of Electrical and Electronics Engineers Inc., 2023. pp. 1109-1110 (IEEE Antennas and Propagation Society, AP-S International Symposium (Digest)).

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abstract = "Minimally invasive ablative therapies have been used extensively to treat hepatic tumors in patients where surgical resections are not needed. Besides electroporation, ablation therapies induce extreme temperatures, i.e., hypothermia or hyperthermia, to cause irreversible damage to the tissue cells. The lesion volume created as a result depends on the temperature gradient in the tissue. Accurate and sensitive temperature monitoring is critical to optimize the treatment and reduce the risk of complications and extrahepatic injury. This study presents an approach to assess the tissue temperatures non-invasively using microwave imaging (MWI). A cross-section of a liver phantom is used for microwave imaging electromagnetic simulation at 915 MHz. Dielectric properties of porcine liver tissue at 915 MHz and varying temperatures are gathered from the literature. Point sources placed around the phantom model act as transmitters and receivers. Distorted Born Iterative Method (DBIM) was used to reconstruct the relative permittivity that is mapped to the temperature field and compared.",

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AB - Minimally invasive ablative therapies have been used extensively to treat hepatic tumors in patients where surgical resections are not needed. Besides electroporation, ablation therapies induce extreme temperatures, i.e., hypothermia or hyperthermia, to cause irreversible damage to the tissue cells. The lesion volume created as a result depends on the temperature gradient in the tissue. Accurate and sensitive temperature monitoring is critical to optimize the treatment and reduce the risk of complications and extrahepatic injury. This study presents an approach to assess the tissue temperatures non-invasively using microwave imaging (MWI). A cross-section of a liver phantom is used for microwave imaging electromagnetic simulation at 915 MHz. Dielectric properties of porcine liver tissue at 915 MHz and varying temperatures are gathered from the literature. Point sources placed around the phantom model act as transmitters and receivers. Distorted Born Iterative Method (DBIM) was used to reconstruct the relative permittivity that is mapped to the temperature field and compared.

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Towards Real-Time Monitoring of Thermal Ablation Lesions in Liver Using Microwave Imaging

Abstract

Publication series

Conference

Keywords

ASJC Scopus subject areas

Access to Document

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