Evaluation of the Degree of Malignancy of Lung Nodules in Computed Tomography Images

L. Gonçalves, J. Novo, A. Cunha, A. Campilho

Abstract

In lung cancer diagnosis, the design of robust Computer Aided Diagnosis (CAD) systems needs to include an adequate differentiation of benign from malignant nodules. This paper presents a CAD system for the classification of lung nodules in chest Computed Tomography (CT) scans as the way to diagnose lung cancer. The proposed method measures a set of 295 heterogeneous characteristics, including morphology, intensity or texture features, that were used as input of different KNN and SVM classifiers. The system was modeled and trained using a groundtruth provided by specialists taken from a public lung image dataset, the Lung Image Database Consortium and Image Database Resource Initiative (LIDC-IDRI). This image dataset includes chest CT scans with lung nodule location together with information about the degree of malignancy, among other properties, provided by multiple expert clinicians. In particular, the computed degree of malignancy try to follow the manual labeling by the different radiologists. Promising results were obtained with a first order SVM with an exponential kernel achieving an area under the receiver operating characteristic curve of 96.2 ± 0.5% when compared with the groundtruth provided in the public CT lung image dataset.

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Paper Citation


in Harvard Style

Gonçalves L., Novo J., Cunha A. and Campilho A. (2017). Evaluation of the Degree of Malignancy of Lung Nodules in Computed Tomography Images . In Proceedings of the 12th International Joint Conference on Computer Vision, Imaging and Computer Graphics Theory and Applications - Volume 6: VISAPP, (VISIGRAPP 2017) ISBN 978-989-758-227-1, pages 74-80. DOI: 10.5220/0006116200740080


in Bibtex Style

@conference{visapp17,
author={L. Gonçalves and J. Novo and A. Cunha and A. Campilho},
title={Evaluation of the Degree of Malignancy of Lung Nodules in Computed Tomography Images},
booktitle={Proceedings of the 12th International Joint Conference on Computer Vision, Imaging and Computer Graphics Theory and Applications - Volume 6: VISAPP, (VISIGRAPP 2017)},
year={2017},
pages={74-80},
publisher={SciTePress},
organization={INSTICC},
doi={10.5220/0006116200740080},
isbn={978-989-758-227-1},
}


in EndNote Style

TY - CONF
JO - Proceedings of the 12th International Joint Conference on Computer Vision, Imaging and Computer Graphics Theory and Applications - Volume 6: VISAPP, (VISIGRAPP 2017)
TI - Evaluation of the Degree of Malignancy of Lung Nodules in Computed Tomography Images
SN - 978-989-758-227-1
AU - Gonçalves L.
AU - Novo J.
AU - Cunha A.
AU - Campilho A.
PY - 2017
SP - 74
EP - 80
DO - 10.5220/0006116200740080