False Positive Reduction of Pulmonary Nodules Based on Mixed Attentional Mechanism

In order to solve the problem of high false positives in the candidate detection stage of pulmonary nodules CAD system, this paper proposes a method to reduce false positives of pulmonary nodules based on mixed attention mechanism. The method can be used as an alternative to the most commonly used 3...

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Main Authors: Binghang TANG, Yanfang WANG, Li MA, Qingwu CHEN, Liwei SHAO, Dehuang HUANG
Format: Article
Language:English
Published: Editorial Office of Computerized Tomography Theory and Application 2022-02-01
Series:CT Lilun yu yingyong yanjiu
Subjects:
Online Access:https://www.cttacn.org.cn/cn/article/doi/10.15953/j.ctta.2021.002
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author Binghang TANG
Yanfang WANG
Li MA
Qingwu CHEN
Liwei SHAO
Dehuang HUANG
author_facet Binghang TANG
Yanfang WANG
Li MA
Qingwu CHEN
Liwei SHAO
Dehuang HUANG
author_sort Binghang TANG
collection DOAJ
description In order to solve the problem of high false positives in the candidate detection stage of pulmonary nodules CAD system, this paper proposes a method to reduce false positives of pulmonary nodules based on mixed attention mechanism. The method can be used as an alternative to the most commonly used 3D CNN classification model at the stage of false positive reduction. It can effectively avoid the problems of large number of parameters and computation in 3D CNN model. In this method, the 3D candidate nodule data is viewed as a slice sequence, and the temporal segment networks model is used in combination with the improved 2D ResNet-18 backbone network which contains mixed attention modules. On the basis of using 2D CNN, the spatial and temporal characteristics of the 3D slice data are effectively studied. Compared with the 3D CNN structure model for pulmonary nodules classification,the method proposed in this paper not only improves the accuracy of nodules classification but also reduces the number of model parameters and the inference time.
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spelling doaj.art-38cc93025d8a410fa46274c52c0ef5612023-09-03T13:40:16ZengEditorial Office of Computerized Tomography Theory and ApplicationCT Lilun yu yingyong yanjiu1004-41402022-02-01311637210.15953/j.ctta.2021.0022021-002False Positive Reduction of Pulmonary Nodules Based on Mixed Attentional MechanismBinghang TANG0Yanfang WANG1Li MA2Qingwu CHEN3Liwei SHAO4Dehuang HUANG5Zhongshan City People’s Hospital, Zhongshan 528404, ChinaZhongshan Yangshi Technology Co., Ltd, Zhongshan 528400, ChinaZhongshan Yangshi Technology Co., Ltd, Zhongshan 528400, ChinaZhongshan Yangshi Technology Co., Ltd, Zhongshan 528400, ChinaZhongshan Research Institute, Beijing Institute of Technology, Zhongshan 528405, ChinaZhongshan Research Institute, Beijing Institute of Technology, Zhongshan 528405, ChinaIn order to solve the problem of high false positives in the candidate detection stage of pulmonary nodules CAD system, this paper proposes a method to reduce false positives of pulmonary nodules based on mixed attention mechanism. The method can be used as an alternative to the most commonly used 3D CNN classification model at the stage of false positive reduction. It can effectively avoid the problems of large number of parameters and computation in 3D CNN model. In this method, the 3D candidate nodule data is viewed as a slice sequence, and the temporal segment networks model is used in combination with the improved 2D ResNet-18 backbone network which contains mixed attention modules. On the basis of using 2D CNN, the spatial and temporal characteristics of the 3D slice data are effectively studied. Compared with the 3D CNN structure model for pulmonary nodules classification,the method proposed in this paper not only improves the accuracy of nodules classification but also reduces the number of model parameters and the inference time.https://www.cttacn.org.cn/cn/article/doi/10.15953/j.ctta.2021.002temporal segment networksmixed attentionpulmonary nodules
spellingShingle Binghang TANG
Yanfang WANG
Li MA
Qingwu CHEN
Liwei SHAO
Dehuang HUANG
False Positive Reduction of Pulmonary Nodules Based on Mixed Attentional Mechanism
CT Lilun yu yingyong yanjiu
temporal segment networks
mixed attention
pulmonary nodules
title False Positive Reduction of Pulmonary Nodules Based on Mixed Attentional Mechanism
title_full False Positive Reduction of Pulmonary Nodules Based on Mixed Attentional Mechanism
title_fullStr False Positive Reduction of Pulmonary Nodules Based on Mixed Attentional Mechanism
title_full_unstemmed False Positive Reduction of Pulmonary Nodules Based on Mixed Attentional Mechanism
title_short False Positive Reduction of Pulmonary Nodules Based on Mixed Attentional Mechanism
title_sort false positive reduction of pulmonary nodules based on mixed attentional mechanism
topic temporal segment networks
mixed attention
pulmonary nodules
url https://www.cttacn.org.cn/cn/article/doi/10.15953/j.ctta.2021.002
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AT qingwuchen falsepositivereductionofpulmonarynodulesbasedonmixedattentionalmechanism
AT liweishao falsepositivereductionofpulmonarynodulesbasedonmixedattentionalmechanism
AT dehuanghuang falsepositivereductionofpulmonarynodulesbasedonmixedattentionalmechanism