KST-Mixer: kinematic spatio-temporal data mixer for colon shape estimation

Oda M, Furukawa K, Navab N, Mori K (2023)

Publication Type: Journal article

Publication year: 2023

Journal

Computer Methods in Biomechanics and Biomedical Engineering : Imaging & Visualization Taylor & Francis

DOI: 10.1080/21681163.2022.2151938

Abstract

We propose a spatio-temporal mixing kinematic data estimation method to estimate the shape of the colon with deformations caused by colonoscope insertion. Endoscope tracking or a navigation system that navigates physicians to target positions is needed to reduce such complications as organ perforations. Although many previous methods focused to track bronchoscopes and surgical endoscopes, few number of colonoscope tracking methods were proposed because the colon largely deforms during colonoscope insertion. The deformation causes significant tracking errors. Colon deformation should be considered in the tracking process. We propose a colon shape estimation method using a Kinematic Spatio-Temporal data Mixer (KST-Mixer) that can be used during colonoscope insertions to the colon. Kinematic data of a colonoscope and the colon, including positions and directions of their centerlines, are obtained using electromagnetic and depth sensors. The proposed method separates the data into sub-groups along the spatial and temporal axes. The KST-Mixer extracts kinematic features and mix them along the axes multiple times. We evaluated colon shape estimation accuracies in phantom studies. The proposed method achieved 11.92 mm mean Euclidean distance error, the smallest of the previous methods. Statistical analysis indicated that the proposed method significantly reduced the error compared to the previous methods.

Involved external institutions

Nagoya University / 名古屋大学 JP Japan (JP) Technische Universität München (TUM) DE Germany (DE)

How to cite

APA:

Oda, M., Furukawa, K., Navab, N., & Mori, K. (2023). KST-Mixer: kinematic spatio-temporal data mixer for colon shape estimation. Computer Methods in Biomechanics and Biomedical Engineering : Imaging & Visualization. https://doi.org/10.1080/21681163.2022.2151938

MLA:

Oda, Masahiro, et al. "KST-Mixer: kinematic spatio-temporal data mixer for colon shape estimation." Computer Methods in Biomechanics and Biomedical Engineering : Imaging & Visualization (2023).

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