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CycleGAN for interpretable online EMT compensation

Krumb, Henry ; Das, Dhritimaan ; Chadda, Romol ; Mukhopadhyay, Anirban (2021)
CycleGAN for interpretable online EMT compensation.
In: International Journal of Computer Assisted Radiology and Surgery, 16 (5)
doi: 10.1007/s11548-021-02324-1
Artikel, Bibliographie

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Kurzbeschreibung (Abstract)

Electromagnetic tracking (EMT) can partially replace X-ray guidance in minimally invasive procedures, reducing radiation in the OR. However, in this hybrid setting, EMT is disturbed by metallic distortion caused by the X-ray device. We plan to make hybrid navigation clinical reality to reduce radiation exposure for patients and surgeons, by compensating EMT error.

Our online compensation strategy exploits cycle-consistent generative adversarial neural networks (CycleGAN). Positions are translated from various bedside environments to their bench equivalents, by adjusting their z-component. Domain-translated points are fine-tuned on the x–y plane to reduce error in the bench domain. We evaluate our compensation approach in a phantom experiment.

Since the domain-translation approach maps distorted points to their laboratory equivalents, predictions are consistent among different C-arm environments. Error is successfully reduced in all evaluation environments. Our qualitative phantom experiment demonstrates that our approach generalizes well to an unseen C-arm environment.

Adversarial, cycle-consistent training is an explicable, consistent and thus interpretable approach for online error compensation. Qualitative assessment of EMT error compensation gives a glimpse to the potential of our method for rotational error compensation.

Typ des Eintrags: Artikel
Erschienen: 2021
Autor(en): Krumb, Henry ; Das, Dhritimaan ; Chadda, Romol ; Mukhopadhyay, Anirban
Art des Eintrags: Bibliographie
Titel: CycleGAN for interpretable online EMT compensation
Sprache: Englisch
Publikationsjahr: 14 März 2021
Verlag: Springer
Titel der Zeitschrift, Zeitung oder Schriftenreihe: International Journal of Computer Assisted Radiology and Surgery
Jahrgang/Volume einer Zeitschrift: 16
(Heft-)Nummer: 5
DOI: 10.1007/s11548-021-02324-1
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Kurzbeschreibung (Abstract):

Electromagnetic tracking (EMT) can partially replace X-ray guidance in minimally invasive procedures, reducing radiation in the OR. However, in this hybrid setting, EMT is disturbed by metallic distortion caused by the X-ray device. We plan to make hybrid navigation clinical reality to reduce radiation exposure for patients and surgeons, by compensating EMT error.

Our online compensation strategy exploits cycle-consistent generative adversarial neural networks (CycleGAN). Positions are translated from various bedside environments to their bench equivalents, by adjusting their z-component. Domain-translated points are fine-tuned on the x–y plane to reduce error in the bench domain. We evaluate our compensation approach in a phantom experiment.

Since the domain-translation approach maps distorted points to their laboratory equivalents, predictions are consistent among different C-arm environments. Error is successfully reduced in all evaluation environments. Our qualitative phantom experiment demonstrates that our approach generalizes well to an unseen C-arm environment.

Adversarial, cycle-consistent training is an explicable, consistent and thus interpretable approach for online error compensation. Qualitative assessment of EMT error compensation gives a glimpse to the potential of our method for rotational error compensation.

Freie Schlagworte: Electromagnetic tracking, Hybrid navigation, Generative adversarial networks, Adversarial domain adaptation
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Erstveröffentlichung

Fachbereich(e)/-gebiet(e): 18 Fachbereich Elektrotechnik und Informationstechnik
18 Fachbereich Elektrotechnik und Informationstechnik > Mess- und Sensortechnik
20 Fachbereich Informatik
20 Fachbereich Informatik > Graphisch-Interaktive Systeme
Hinterlegungsdatum: 25 Mär 2021 11:01
Letzte Änderung: 30 Sep 2024 11:29
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