Generative-Adversarial-Network-Based Data Augmentation for the Classification of Craniosynostosis

Craniosynostosis is a congenital disease characterized by the premature closure of one or multiple sutures of the infant’s skull. For diagnosis, 3D photogrammetric scans are a radiation-free alternative to computed tomography. However, data is only sparsely available and the role of data augmentatio...

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Main Authors: Kaiser Christian, Schaufelberger Matthias, Kühle Reinald Peter, Wachter Andreas, Weichel Frederic, Hagen Niclas, Ringwald Friedemann, Eisenmann Urs, Engel Michael, Freudlsperger Christian, Nahm Werner
Format: Article
Language:English
Published: De Gruyter 2022-09-01
Series:Current Directions in Biomedical Engineering
Subjects:
Online Access:https://doi.org/10.1515/cdbme-2022-1005
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author Kaiser Christian
Schaufelberger Matthias
Kühle Reinald Peter
Wachter Andreas
Weichel Frederic
Hagen Niclas
Ringwald Friedemann
Eisenmann Urs
Engel Michael
Freudlsperger Christian
Nahm Werner
author_facet Kaiser Christian
Schaufelberger Matthias
Kühle Reinald Peter
Wachter Andreas
Weichel Frederic
Hagen Niclas
Ringwald Friedemann
Eisenmann Urs
Engel Michael
Freudlsperger Christian
Nahm Werner
author_sort Kaiser Christian
collection DOAJ
description Craniosynostosis is a congenital disease characterized by the premature closure of one or multiple sutures of the infant’s skull. For diagnosis, 3D photogrammetric scans are a radiation-free alternative to computed tomography. However, data is only sparsely available and the role of data augmentation for the classification of craniosynostosis has not yet been analyzed. In this work, we use a 2D distance map representation of the infants’ heads with a convolutional-neural-network-based classifier and employ a generative adversarial network (GAN) for data augmentation. We simulate two data scarcity scenarios with 15% and 10% training data and test the influence of different degrees of added synthetic data and balancing underrepresented classes. We used total accuracy and F1-score as a metric to evaluate the final classifiers. For 15% training data, the GAN-augmented dataset showed an increased F1-score up to 0.1 and classification accuracy up to 3 %. For 10% training data, both metrics decreased. We present a deep convolutional GAN capable of creating synthetic data for the classification of craniosynostosis. Using a moderate amount of synthetic data using a GAN showed slightly better performance, but had little effect overall. The simulated scarcity scenario of 10% training data may have limited the model’s ability to learn the underlying data distribution.
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spelling doaj.art-3e928e73d32845a2848207d68256b9352023-01-19T12:47:02ZengDe GruyterCurrent Directions in Biomedical Engineering2364-55042022-09-0182172010.1515/cdbme-2022-1005Generative-Adversarial-Network-Based Data Augmentation for the Classification of CraniosynostosisKaiser Christian0Schaufelberger Matthias1Kühle Reinald Peter2Wachter Andreas3Weichel Frederic4Hagen Niclas5Ringwald Friedemann6Eisenmann Urs7Engel Michael8Freudlsperger Christian9Nahm Werner10Institute of Biomedical Engineering (IBT), Karlsruhe Institute of Technology (KIT), Kaiserstr. 12,Karlsruhe, GermanyInstitute of Biomedical Engineering (IBT), Karlsruhe Institute of Technology (KIT), Kaiserstr. 12,Karlsruhe, GermanyDepartment of Oral and Maxillofacial Surgery, Heidelberg University Hospital, Im Neuenheimer Feld 400,Heidelberg, GermanyInstitute of Biomedical Engineering (IBT), Karlsruhe Institute of Technology (KIT), Kaiserstr. 12,Karlsruhe, GermanyDepartment of Oral and Maxillofacial Surgery, Heidelberg University Hospital, Im Neuenheimer Feld 400,Heidelberg, GermanyInstitute of Medical Informatics, Heidelberg University Hospital, Im Neuenheimer Feld 130.3,Heidelberg, GermanyInstitute of Medical Informatics, Heidelberg University Hospital, Im Neuenheimer Feld 130.3,Heidelberg, GermanyInstitute of Medical Informatics, Heidelberg University Hospital, Im Neuenheimer Feld 130.3,Heidelberg, GermanyDepartment of Oral and Maxillofacial Surgery, Heidelberg University Hospital, Im Neuenheimer Feld 400,Heidelberg, GermanyDepartment of Oral and Maxillofacial Surgery, Heidelberg University Hospital, Im Neuenheimer Feld 400,Heidelberg, GermanyInstitute of Biomedical Engineering (IBT), Karlsruhe Institute of Technology (KIT), Kaiserstr. 12,Karlsruhe, GermanyCraniosynostosis is a congenital disease characterized by the premature closure of one or multiple sutures of the infant’s skull. For diagnosis, 3D photogrammetric scans are a radiation-free alternative to computed tomography. However, data is only sparsely available and the role of data augmentation for the classification of craniosynostosis has not yet been analyzed. In this work, we use a 2D distance map representation of the infants’ heads with a convolutional-neural-network-based classifier and employ a generative adversarial network (GAN) for data augmentation. We simulate two data scarcity scenarios with 15% and 10% training data and test the influence of different degrees of added synthetic data and balancing underrepresented classes. We used total accuracy and F1-score as a metric to evaluate the final classifiers. For 15% training data, the GAN-augmented dataset showed an increased F1-score up to 0.1 and classification accuracy up to 3 %. For 10% training data, both metrics decreased. We present a deep convolutional GAN capable of creating synthetic data for the classification of craniosynostosis. Using a moderate amount of synthetic data using a GAN showed slightly better performance, but had little effect overall. The simulated scarcity scenario of 10% training data may have limited the model’s ability to learn the underlying data distribution.https://doi.org/10.1515/cdbme-2022-1005generative adversarial networkclassificationcraniosynostosisdata augmentation
spellingShingle Kaiser Christian
Schaufelberger Matthias
Kühle Reinald Peter
Wachter Andreas
Weichel Frederic
Hagen Niclas
Ringwald Friedemann
Eisenmann Urs
Engel Michael
Freudlsperger Christian
Nahm Werner
Generative-Adversarial-Network-Based Data Augmentation for the Classification of Craniosynostosis
Current Directions in Biomedical Engineering
generative adversarial network
classification
craniosynostosis
data augmentation
title Generative-Adversarial-Network-Based Data Augmentation for the Classification of Craniosynostosis
title_full Generative-Adversarial-Network-Based Data Augmentation for the Classification of Craniosynostosis
title_fullStr Generative-Adversarial-Network-Based Data Augmentation for the Classification of Craniosynostosis
title_full_unstemmed Generative-Adversarial-Network-Based Data Augmentation for the Classification of Craniosynostosis
title_short Generative-Adversarial-Network-Based Data Augmentation for the Classification of Craniosynostosis
title_sort generative adversarial network based data augmentation for the classification of craniosynostosis
topic generative adversarial network
classification
craniosynostosis
data augmentation
url https://doi.org/10.1515/cdbme-2022-1005
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