Quantification of Lung Abnormalities in Cystic Fibrosis using Deep Networks

Filipe Marques, Florian Dubost, Mariette Kemner-van de Corput, Harm A. W. Tiddens, Marleen de Bruijne

    3 Citations (Scopus)

    Abstract

    Cystic fibrosis is a genetic disease which may appear in early life with structural abnormalities in lung tissues. We propose to detect these abnormalities using a texture classification approach. Our method is a cascade of two convolutional neural networks. The first network detects the presence of abnormal tissues. The second network identifies the type of the structural abnormalities: bronchiectasis, atelectasis or mucus plugging.We also propose a network computing pixel-wise heatmaps of abnormality presence learning only from the patch-wise annotations. Our database consists of CT scans of 194 subjects. We use 154 subjects to train our algorithms and the 40 remaining ones as a test set. We compare our method with random forest and a single neural network approach. The first network reaches a sensitivity of 0,62 for disease detection, 0,10 higher than the random forest classifier and 0,17 higher than the single neural network. Our cascade approach yields a final class-averaged F1-score of 0,38, outperforming the baseline method and the single network by 0,15 and 0,10.

    Original languageEnglish
    Title of host publicationMedical Imaging 2018 : Image Processing
    Number of pages7
    PublisherSPIE - International Society for Optical Engineering
    Publication date2018
    Article number105741G
    DOIs
    Publication statusPublished - 2018
    EventSPIE Medical Imaging 2018 - Houston, United States
    Duration: 10 Feb 201815 Feb 2018

    Conference

    ConferenceSPIE Medical Imaging 2018
    Country/TerritoryUnited States
    CityHouston
    Period10/02/201815/02/2018
    SeriesProceedings of SPIE International Symposium on Medical Imaging
    Volume10574

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