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.jpg): Failed to open stream: No such file or directory in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 117 J+Med+Biol+Eng
2020 ; 40
(3
): 462-469
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gab.com Text
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Extracting Possibly Representative COVID-19 Biomarkers from X-ray Images with
Deep Learning Approach and Image Data Related to Pulmonary Diseases
#MMPMID32412551
Apostolopoulos ID
; Aznaouridis SI
; Tzani MA
J Med Biol Eng
2020[]; 40
(3
): 462-469
PMID32412551
show ga
PURPOSE: While the spread of COVID-19 is increased, new, automatic, and reliable
methods for accurate detection are essential to reduce the exposure of the
medical experts to the outbreak. X-ray imaging, although limited to specific
visualizations, may be helpful for the diagnosis. In this study, the problem of
automatic classification of pulmonary diseases, including the recently emerged
COVID-19, from X-ray images, is considered. METHODS: Deep Learning has proven to
be a remarkable method to extract massive high-dimensional features from medical
images. Specifically, in this paper, the state-of-the-art Convolutional Neural
Network called Mobile Net is employed and trained from scratch to investigate the
importance of the extracted features for the classification task. A large-scale
dataset of 3905 X-ray images, corresponding to 6 diseases, is utilized for
training MobileNet v2, which has been proven to achieve excellent results in
related tasks. RESULTS: Training the CNNs from scratch outperforms the other
transfer learning techniques, both in distinguishing the X-rays between the seven
classes and between Covid-19 and non-Covid-19. A classification accuracy between
the seven classes of 87.66% is achieved. Besides, this method achieves 99.18%
accuracy, 97.36% Sensitivity, and 99.42% Specificity in the detection of
COVID-19. CONCLUSION: The results suggest that training CNNs from scratch may
reveal vital biomarkers related but not limited to the COVID-19 disease, while
the top classification accuracy suggests further examination of the X-ray imaging
potential.