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Erschienen in: International Journal of Computer Assisted Radiology and Surgery 12/2018

25.09.2018 | Original Article

Deep learning with convolutional neural network for objective skill evaluation in robot-assisted surgery

verfasst von: Ziheng Wang, Ann Majewicz Fey

Erschienen in: International Journal of Computer Assisted Radiology and Surgery | Ausgabe 12/2018

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Abstract

Purpose

With the advent of robot-assisted surgery, the role of data-driven approaches to integrate statistics and machine learning is growing rapidly with prominent interests in objective surgical skill assessment. However, most existing work requires translating robot motion kinematics into intermediate features or gesture segments that are expensive to extract, lack efficiency, and require significant domain-specific knowledge.

Methods

We propose an analytical deep learning framework for skill assessment in surgical training. A deep convolutional neural network is implemented to map multivariate time series data of the motion kinematics to individual skill levels.

Results

We perform experiments on the public minimally invasive surgical robotic dataset, JHU-ISI Gesture and Skill Assessment Working Set (JIGSAWS). Our proposed learning model achieved competitive accuracies of 92.5%, 95.4%, and 91.3%, in the standard training tasks: Suturing, Needle-passing, and Knot-tying, respectively. Without the need of engineered features or carefully tuned gesture segmentation, our model can successfully decode skill information from raw motion profiles via end-to-end learning. Meanwhile, the proposed model is able to reliably interpret skills within a 1–3 second window, without needing an observation of entire training trial.

Conclusion

This study highlights the potential of deep architectures for efficient online skill assessment in modern surgical training.

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Metadaten
Titel
Deep learning with convolutional neural network for objective skill evaluation in robot-assisted surgery
verfasst von
Ziheng Wang
Ann Majewicz Fey
Publikationsdatum
25.09.2018
Verlag
Springer International Publishing
Erschienen in
International Journal of Computer Assisted Radiology and Surgery / Ausgabe 12/2018
Print ISSN: 1861-6410
Elektronische ISSN: 1861-6429
DOI
https://doi.org/10.1007/s11548-018-1860-1

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