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Sensors
Volume 20
Issue 7
10.3390/s20071911
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Article

Hyperspectral Imaging for the Detection of Glioblastoma Tumor Cells in H&E Slides Using Convolutional Neural Networks

by
Samuel Ortega
1,2,*,†,
Martin Halicek
1,3,†,
Himar Fabelo
2,
Rafael Camacho
4,
María de la Luz Plaza
4,
Fred Godtliebsen
5,
Gustavo M. Callicó
2 and
Baowei Fei
1,6,7,*
1
Quantitative Bioimaging Laboratory, Department of Bioengineering, The University of Texas at Dallas, Richardson, TX 75080, USA
2
Institute for Applied Microelectronics (IUMA), University of Las Palmas de Gran Canaria (ULPGC), 35017 Las Palmas de Gran Canaria, Spain
3
Department of Biomedical Engineering, Emory University and Georgia Institute of Technology, 1841 Clifton Road NE, Atlanta, GA 30329, USA
4
Department of Pathological Anatomy, University Hospital Doctor Negrin of Gran Canaria, Barranco de la Ballena s/n, 35010 Las Palmas de Gran Canaria, Spain
5
Department of Mathematics and Statistics, UiT The Artic, University of Norway, Hansine Hansens veg 18, 9019 Tromsø, Norway
6
Advanced Imaging Research Center, University of Texas Southwestern Medical Center, 5323 Harry Hine Blvd, Dallas, TX 75390, USA
7
Department of Radiology, University of Texas Southwestern Medical Center, 5323 Harry Hine Blvd, Dallas, TX 75390, USA
*
Authors to whom correspondence should be addressed.
†
These authors contributed equally to this work.
Sensors 2020, 20(7), 1911; https://doi.org/10.3390/s20071911
Received: 6 March 2020 / Revised: 24 March 2020 / Accepted: 28 March 2020 / Published: 30 March 2020
(This article belongs to the Special Issue Sensors, Signal and Image Processing in Biomedicine and Assisted Living)
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Abstract

Hyperspectral imaging (HSI) technology has demonstrated potential to provide useful information about the chemical composition of tissue and its morphological features in a single image modality. Deep learning (DL) techniques have demonstrated the ability of automatic feature extraction from data for a successful classification. In this study, we exploit HSI and DL for the automatic differentiation of glioblastoma (GB) and non-tumor tissue on hematoxylin and eosin (H&E) stained histological slides of human brain tissue. GB detection is a challenging application, showing high heterogeneity in the cellular morphology across different patients. We employed an HSI microscope, with a spectral range from 400 to 1000 nm, to collect 517 HS cubes from 13 GB patients using 20× magnification. Using a convolutional neural network (CNN), we were able to automatically detect GB within the pathological slides, achieving average sensitivity and specificity values of 88% and 77%, respectively, representing an improvement of 7% and 8% respectively, as compared to the results obtained using RGB (red, green, and blue) images. This study demonstrates that the combination of hyperspectral microscopic imaging and deep learning is a promising tool for future computational pathologies. View Full-Text
Keywords: hyperspectral imaging; medical optics and biotechnology; optical pathology; convolutional neural networks; tissue diagnostics; tissue characterization; glioblastoma hyperspectral imaging; medical optics and biotechnology; optical pathology; convolutional neural networks; tissue diagnostics; tissue characterization; glioblastoma
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MDPI and ACS Style

Ortega, S.; Halicek, M.; Fabelo, H.; Camacho, R.; Plaza, M.d.l.L.; Godtliebsen, F.; M. Callicó, G.; Fei, B. Hyperspectral Imaging for the Detection of Glioblastoma Tumor Cells in H&E Slides Using Convolutional Neural Networks. Sensors 2020, 20, 1911. https://doi.org/10.3390/s20071911

AMA Style

Ortega S, Halicek M, Fabelo H, Camacho R, Plaza MdlL, Godtliebsen F, M. Callicó G, Fei B. Hyperspectral Imaging for the Detection of Glioblastoma Tumor Cells in H&E Slides Using Convolutional Neural Networks. Sensors. 2020; 20(7):1911. https://doi.org/10.3390/s20071911

Chicago/Turabian Style

Ortega, Samuel, Martin Halicek, Himar Fabelo, Rafael Camacho, María d.l.L. Plaza, Fred Godtliebsen, Gustavo M. Callicó, and Baowei Fei. 2020. "Hyperspectral Imaging for the Detection of Glioblastoma Tumor Cells in H&E Slides Using Convolutional Neural Networks" Sensors 20, no. 7: 1911. https://doi.org/10.3390/s20071911

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