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Automatic classification of pulmonary peri-fissural nodules in computed tomography using an ensemble of 2D views and a convolutional neural network out-of-the-box

机译:使用2D视图和开箱即用的卷积神经网络集成在计算机断层摄影中对肺周围裂节结节进行自动分类

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In this paper, we tackle the problem of automatic classification of pulmonary peri-fissural nodules (PFNs). The classification problem is formulated as a machine learning approach, where detected nodule candidates are classified as PFNs or non-PFNs. Supervised learning is used, where a classifier is trained to label the detected nodule. The classification of the nodule in 3D is formulated as an ensemble of classifiers trained to recognize PFNs based on 2D views of the nodule. In order to describe nodule morphology in 2D views, we use the output of a pre-trained convolutional neural network known as OverFeat. We compare our approach with a recently presented descriptor of pulmonary nodule morphology, namely Bag of Frequencies, and illustrate the advantages offered by the two strategies, achieving performance of AUC = 0.868, which is close to the one of human experts. (C) 2015 Elsevier B.V. All rights reserved.
机译:在本文中,我们解决了肺裂周围结节(PFNs)的自动分类问题。分类问题被表述为一种机器学习方法,其中将检测到的结节候选分类为PFN或非PFN。使用监督学习,其中训练分类器以标记检测到的结节。 3D结节的分类被公式化为分类器的整体,这些分类器经过训练可以根据结节的2D视图识别PFN。为了在2D视图中描述结节形态,我们使用称为OverFeat的预训练卷积神经网络的输出。我们将我们的方法与最近提出的肺结节形态描述符(即袋频率)进行了比较,并说明了这两种策略所提供的优势,实现了AUC = 0.868的性能,接近人类专家之一。 (C)2015 Elsevier B.V.保留所有权利。

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