Automatic delineation of ribs and clavicles in chest radiographs using fully convolutional DenseNets
Automatic delineation of ribs and clavicles in chest radiographs using fully convolutional DenseNets
复制标题
使用全卷积 DenseNet 自动描绘胸部 X 光照片中的肋骨和锁骨
DOI:
10.1016/j.cmpb.2019.105014
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发表时间:
2019-10
影响因子:
6.1
通讯作者:
Yang Wei
中科院分区:
文献类型:
--
作者:
Liu Yunbi;Zhang Xiao;Cai Guangwei;Chen Yingyin;Yun Zhaoqiang;Feng Qianjin;Yang Wei
Background and ObjectiveIn chest radiographs (CXRs), all bones and soft tissues are overlapping with each other, which raises issues for radiologists to read and interpret CXRs. Delineating the ribs and clavicles is helpful for suppressing them from chest radiographs so that their effects can be reduced for chest radiography analysis. However, delineating ribs and clavicles automatically is difficult by methods without deep learning models. Moreover, few of methods without deep learning models can delineate the anterior ribs effectively due to their faint rib edges in the posterior-anterior (PA) CXRs.MethodsIn this work, we present an effective deep learning method for delineating posterior ribs, anterior ribs and clavicles automatically using a fully convolutional DenseNet (FC-DenseNet) as pixel classifier. We consider a pixel-weighted loss function to mitigate the uncertainty issue during manually delineating for robust prediction.ResultsWe conduct a comparative analysis with two other fully convolutional networks for edge detection and the state-of-the-art method without deep learning models. The proposed method significantly outperforms these methods in terms of quantitative evaluation metrics and visual perception. The average recall, precision and F-measure are 0.773 ± 0.030, 0.861 ± 0.043 and 0.814 ± 0.023 respectively, and the mean boundary distance (MBD) is 0.855 ± 0.642 pixels of the proposed method on the test dataset. The proposed method also performs well on JSRT and NIH Chest X-ray datasets, indicating its generalizability across multiple databases. Besides, a preliminary result of suppressing the bone components of CXRs has been produced by using our delineating system.ConclusionsThe proposed method can automatically delineate ribs and clavicles in CXRs and produce accurate edge maps.
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10.1007/978-3-0348-5767-3
发表时间:
1975-09
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影响因子:
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影响因子:
23.6
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