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Published in: Surgery Today 12/2023

24-06-2023 | Lung Cancer | Original Article

Detecting the location of lung cancer on thoracoscopic images using deep convolutional neural networks

Authors: Yuya Ishikawa, Takaaki Sugino, Kenichi Okubo, Yoshikazu Nakajima

Published in: Surgery Today | Issue 12/2023

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Abstract

Objectives

The prevalence of minimally invasive surgeries has increased the need for tumor detection using thoracoscopic images during lung cancer surgery. We conducted this study to analyze the efficacy of a deep convolutional neural network (DCNN) for tumor detection using recorded thoracoscopic images of pulmonary surfaces.

Materials and methods

We collected 644 intraoperative thoracoscopic images of changes in pulmonary appearance from 427 patients with lung cancer between 2012 and 2021. The lesion areas on the thoracoscopic images were detected by bounding boxes using an advanced version of YOLO, a well-known DCNN for object detection. The DCNN model was trained and evaluated by a 15-fold cross-validation scheme. Each predicted bounding box was considered successful detection when it overlapped more than 50% of the lesion areas annotated by board-certified surgeons.

Results and conclusions

Precision, recall, and F1-measured values of 91.9%, 90.5%, and 91.1%, respectively, were obtained. The presence of lymphatic vessel invasion was associated with successful detection (p = 0.045). The presence of pathological pleural invasion also showed a tendency toward successful detection (p = 0.081). The proposed DCNN-based algorithm yielded an accuracy of more than 90% tumor detection. These algorithms will help surgeons detect lung cancer displayed on a screen automatically.
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Metadata
Title
Detecting the location of lung cancer on thoracoscopic images using deep convolutional neural networks
Authors
Yuya Ishikawa
Takaaki Sugino
Kenichi Okubo
Yoshikazu Nakajima
Publication date
24-06-2023
Publisher
Springer Nature Singapore
Published in
Surgery Today / Issue 12/2023
Print ISSN: 0941-1291
Electronic ISSN: 1436-2813
DOI
https://doi.org/10.1007/s00595-023-02708-7

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