A concept for electromagnetic navigated targeting of liver tumors using an angiographic approach.

Schwalbe, Marius; Williamson, Tom; Paolucci, Iwan; Fuss, Torsten; Baumgartner, Iris; Candinas, Daniel; Weber, Stefan; Tinguely, Pascale Marie Pia (2018). A concept for electromagnetic navigated targeting of liver tumors using an angiographic approach. Minimally invasive therapy & allied technologies, 27(1), pp. 51-59. Taylor & Francis 10.1080/13645706.2017.1407798

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BACKGROUND The benefits of using navigation technology for percutaneous local ablation of selected hepatocellular carcinoma (HCC) have been shown. Due to additional efforts in the procedural workflow, barriers to introducing navigation systems on a broad clinical level remain high. In this work, initial steps toward a novel concept for simple and precise targeting of HCC are evaluated. MATERIAL AND METHODS The proposed technique is based on an angiographic approach using an intrahepatic electromagnetic (EM) reference, for consecutive percutaneous navigated positioning of ablation probes. We evaluated the environmental influence of the angiography suite on EM tracking accuracy, the measurement of a 3 D offset from two 2 D fluoroscopy images, and the accuracy and efficiency of the proposed approach in a porcine liver model. RESULTS The C-arm had a major influence on EM tracking accuracy, with an error up to 3.8 mm. The methodology applied for measurement of a 3 D offset from 2 D fluoroscopy images was confirmed to be feasible with a mean error of 0.76 mm. In the porcine liver model experiment, the overall target positioning error (TPE) was 2.0 mm and time for navigated targeting was 17.9 seconds, when using a tracked ablation probe. CONCLUSIONS The initial methodology of the proposed technique was confirmed to be feasible, introducing a novel concept for simple and precise navigated targeting of HCC.

Item Type:

Journal Article (Original Article)

Division/Institute:

04 Faculty of Medicine > Pre-clinic Human Medicine > BioMedical Research (DBMR) > DBMR Forschung Mu35 > Forschungsgruppe Viszeralchirurgie
04 Faculty of Medicine > Pre-clinic Human Medicine > BioMedical Research (DBMR) > DBMR Forschung Mu35 > Forschungsgruppe Viszeralchirurgie

04 Faculty of Medicine > Department of Gastro-intestinal, Liver and Lung Disorders (DMLL) > Clinic of Visceral Surgery and Medicine
04 Faculty of Medicine > Department of Gastro-intestinal, Liver and Lung Disorders (DMLL) > Clinic of Visceral Surgery and Medicine > Visceral Surgery
10 Strategic Research Centers > ARTORG Center for Biomedical Engineering Research
04 Faculty of Medicine > Department of Cardiovascular Disorders (DHGE) > Clinic of Angiology
10 Strategic Research Centers > ARTORG Center for Biomedical Engineering Research > ARTORG Center - Image Guided Therapy

Graduate School:

Graduate School for Cellular and Biomedical Sciences (GCB)

UniBE Contributor:

Schwalbe, Marius; Williamson, Tom; Paolucci, Iwan; Fuss, Torsten; Baumgartner, Iris; Candinas, Daniel; Weber, Stefan and Tinguely, Pascale Marie Pia

Subjects:

600 Technology > 610 Medicine & health
500 Science > 570 Life sciences; biology

ISSN:

1364-5706

Publisher:

Taylor & Francis

Language:

English

Submitter:

Lars Marius Schwalbe

Date Deposited:

14 Dec 2017 16:52

Last Modified:

01 Mar 2019 02:30

Publisher DOI:

10.1080/13645706.2017.1407798

PubMed ID:

29179633

BORIS DOI:

10.7892/boris.107510

URI:

https://boris.unibe.ch/id/eprint/107510

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