PEg TRAnsfer Workflow recognition challenge report: Does multi-modal data improve recognition?

• URL: http://arxiv.org/abs/2202.05821v3
• Date: Thu, 27 Apr 2023 13:27:49 GMT
• Title: PEg TRAnsfer Workflow recognition challenge report: Does multi-modal data improve recognition?
• Authors: Arnaud Huaulm\'e, Kanako Harada, Quang-Minh Nguyen, Bogyu Park, Seungbum Hong, Min-Kook Choi, Michael Peven, Yunshuang Li, Yonghao Long, Qi Dou, Satyadwyoom Kumar, Seenivasan Lalithkumar, Ren Hongliang, Hiroki Matsuzaki, Yuto Ishikawa, Yuriko Harai, Satoshi Kondo, Mamoru Mitsuishi, Pierre Jannin
• Abstract summary: "PEg TRAnsfert recognition" (PETRAW) challenge was to develop surgical workflow recognition methods based on one or several modalities. PETRAW challenge provided a data set of 150 peg transfer sequences performed on a virtual simulator. The improvement between video/kinematic-based methods and the uni-modality ones was significant for all of the teams.
• Score: 14.144188912860892
• License: http://creativecommons.org/licenses/by-nc-sa/4.0/
• Abstract: This paper presents the design and results of the "PEg TRAnsfert Workflow recognition" (PETRAW) challenge whose objective was to develop surgical workflow recognition methods based on one or several modalities, among video, kinematic, and segmentation data, in order to study their added value. The PETRAW challenge provided a data set of 150 peg transfer sequences performed on a virtual simulator. This data set was composed of videos, kinematics, semantic segmentation, and workflow annotations which described the sequences at three different granularity levels: phase, step, and activity. Five tasks were proposed to the participants: three of them were related to the recognition of all granularities with one of the available modalities, while the others addressed the recognition with a combination of modalities. Average application-dependent balanced accuracy (AD-Accuracy) was used as evaluation metric to take unbalanced classes into account and because it is more clinically relevant than a frame-by-frame score. Seven teams participated in at least one task and four of them in all tasks. Best results are obtained with the use of the video and the kinematics data with an AD-Accuracy between 93% and 90% for the four teams who participated in all tasks. The improvement between video/kinematic-based methods and the uni-modality ones was significant for all of the teams. However, the difference in testing execution time between the video/kinematic-based and the kinematic-based methods has to be taken into consideration. Is it relevant to spend 20 to 200 times more computing time for less than 3% of improvement? The PETRAW data set is publicly available at www.synapse.org/PETRAW to encourage further research in surgical workflow recognition.

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