A Novel Ultrasound Imaging Method for 2D Temperature Monitoring of Thermal Ablation

Chloé Audigier, Younsu Kim, Emad Boctor

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

Abstract

Accurate temperature monitoring is a crucial task that directly affects the safety and effectiveness of thermal ablation procedures. Compared to MRI, ultrasound-based temperature monitoring systems have many advantages, including higher temporal resolution, low cost, safety, mobility and ease of use. However, conventional ultrasound (US) images have a limited accuracy due to a weak temperature sensitivity. As a result, it is more challenging to fully meet the clinical requirements for assessing the completion of ablation therapy. A novel imaging method for temperature monitoring is proposed based on the injection of virtual US pattern in the US brightness mode (B-mode) image coupled with biophysical simulation of heat propagation. This proposed imaging method does not require any hardware extensions to the conventional US B-mode system. The main principle is to establish a bi-directional US communication between the US imaging machine and an active element inserted within the tissue. A virtual pattern can then directly be created into the US B-mode display during the ablation by controlling the timing and amplitude of the US field generated by the active element. Changes of the injected pattern are related to the change of the ablated tissue temperature through the additional knowledge of a biophysical model of heat propagation in the tissue. Those changes are monitored during ablation, generating accurate spatial and temporal temperature maps. We demonstrated in silico the method feasibility and showed experimentally its applicability on a clinical US scanner using ex vivo data. Promising results are achieved: a mean temperature error smaller than 4 ° C was achieved in all the simulation experiments. The system performance is tested under different configurations of noise in the data. The effect of error in the localization of the RFA probe is also evaluated.

Original languageEnglish (US)
Title of host publicationImaging for Patient-Customized Simulations and Systems for Point-of-Care Ultrasound - International Workshops, BIVPCS 2017 and POCUS 2017 Held in Conjunction with MICCAI 2017, Proceedings
PublisherSpringer Verlag
Pages154-162
Number of pages9
Volume10549 LNCS
ISBN (Print)9783319675510
DOIs
StatePublished - 2017
EventInternational Workshop on Bio-Imaging and Visualization for Patient-Customized Simulations, BIVPCS 2017 and International Workshop on Point-of-Care Ultrasound: Algorithms, Hardware, and Applications, POCUS 2017 held in Conjunction with 20th International Conference on Medical Image Computing and Computer Assisted Intervention, MICCAI 2017 - Quebec City, Canada
Duration: Sep 14 2017Sep 14 2017

Publication series

NameLecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)
Volume10549 LNCS
ISSN (Print)0302-9743
ISSN (Electronic)1611-3349

Other

OtherInternational Workshop on Bio-Imaging and Visualization for Patient-Customized Simulations, BIVPCS 2017 and International Workshop on Point-of-Care Ultrasound: Algorithms, Hardware, and Applications, POCUS 2017 held in Conjunction with 20th International Conference on Medical Image Computing and Computer Assisted Intervention, MICCAI 2017
CountryCanada
CityQuebec City
Period9/14/179/14/17

Fingerprint

Ablation
Ultrasound
Ultrasonics
Imaging
Monitoring
Imaging techniques
Brightness
Temperature
Luminance
Tissue
Heat
Safety
Propagation
Hot Temperature
Ultrasound Image
Scanner
Monitoring System
Simulation Experiment
Therapy
Completion

ASJC Scopus subject areas

  • Theoretical Computer Science
  • Computer Science(all)

Cite this

Audigier, C., Kim, Y., & Boctor, E. (2017). A Novel Ultrasound Imaging Method for 2D Temperature Monitoring of Thermal Ablation. In Imaging for Patient-Customized Simulations and Systems for Point-of-Care Ultrasound - International Workshops, BIVPCS 2017 and POCUS 2017 Held in Conjunction with MICCAI 2017, Proceedings (Vol. 10549 LNCS, pp. 154-162). (Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics); Vol. 10549 LNCS). Springer Verlag. https://doi.org/10.1007/978-3-319-67552-7_19

A Novel Ultrasound Imaging Method for 2D Temperature Monitoring of Thermal Ablation. / Audigier, Chloé; Kim, Younsu; Boctor, Emad.

Imaging for Patient-Customized Simulations and Systems for Point-of-Care Ultrasound - International Workshops, BIVPCS 2017 and POCUS 2017 Held in Conjunction with MICCAI 2017, Proceedings. Vol. 10549 LNCS Springer Verlag, 2017. p. 154-162 (Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics); Vol. 10549 LNCS).

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

Audigier, C, Kim, Y & Boctor, E 2017, A Novel Ultrasound Imaging Method for 2D Temperature Monitoring of Thermal Ablation. in Imaging for Patient-Customized Simulations and Systems for Point-of-Care Ultrasound - International Workshops, BIVPCS 2017 and POCUS 2017 Held in Conjunction with MICCAI 2017, Proceedings. vol. 10549 LNCS, Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics), vol. 10549 LNCS, Springer Verlag, pp. 154-162, International Workshop on Bio-Imaging and Visualization for Patient-Customized Simulations, BIVPCS 2017 and International Workshop on Point-of-Care Ultrasound: Algorithms, Hardware, and Applications, POCUS 2017 held in Conjunction with 20th International Conference on Medical Image Computing and Computer Assisted Intervention, MICCAI 2017, Quebec City, Canada, 9/14/17. https://doi.org/10.1007/978-3-319-67552-7_19
Audigier C, Kim Y, Boctor E. A Novel Ultrasound Imaging Method for 2D Temperature Monitoring of Thermal Ablation. In Imaging for Patient-Customized Simulations and Systems for Point-of-Care Ultrasound - International Workshops, BIVPCS 2017 and POCUS 2017 Held in Conjunction with MICCAI 2017, Proceedings. Vol. 10549 LNCS. Springer Verlag. 2017. p. 154-162. (Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)). https://doi.org/10.1007/978-3-319-67552-7_19
Audigier, Chloé ; Kim, Younsu ; Boctor, Emad. / A Novel Ultrasound Imaging Method for 2D Temperature Monitoring of Thermal Ablation. Imaging for Patient-Customized Simulations and Systems for Point-of-Care Ultrasound - International Workshops, BIVPCS 2017 and POCUS 2017 Held in Conjunction with MICCAI 2017, Proceedings. Vol. 10549 LNCS Springer Verlag, 2017. pp. 154-162 (Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)).
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