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Journal of Imaging Informatics in Medicine

Erschienen in:

07.08.2017

Residual Deep Convolutional Neural Network Predicts MGMT Methylation Status

verfasst von: Panagiotis Korfiatis, Timothy L. Kline, Daniel H. Lachance, Ian F. Parney, Jan C. Buckner, Bradley J. Erickson

Erschienen in: Journal of Imaging Informatics in Medicine | Ausgabe 5/2017

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Abstract

Predicting methylation of the O6-methylguanine methyltransferase (MGMT) gene status utilizing MRI imaging is of high importance since it is a predictor of response and prognosis in brain tumors. In this study, we compare three different residual deep neural network (ResNet) architectures to evaluate their ability in predicting MGMT methylation status without the need for a distinct tumor segmentation step. We found that the ResNet50 (50 layers) architecture was the best performing model, achieving an accuracy of 94.90% (+/− 3.92%) for the test set (classification of a slice as no tumor, methylated MGMT, or non-methylated). ResNet34 (34 layers) achieved 80.72% (+/− 13.61%) while ResNet18 (18 layers) accuracy was 76.75% (+/− 20.67%). ResNet50 performance was statistically significantly better than both ResNet18 and ResNet34 architectures (p < 0.001). We report a method that alleviates the need of extensive preprocessing and acts as a proof of concept that deep neural architectures can be used to predict molecular biomarkers from routine medical images.

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Titel: Residual Deep Convolutional Neural Network Predicts MGMT Methylation Status
verfasst von: Panagiotis Korfiatis
Timothy L. Kline
Daniel H. Lachance
Ian F. Parney
Jan C. Buckner
Bradley J. Erickson
Publikationsdatum: 07.08.2017
Verlag: Springer International Publishing
Erschienen in: Journal of Imaging Informatics in Medicine / Ausgabe 5/2017
Print ISSN: 2948-2925
Elektronische ISSN: 2948-2933
DOI: https://doi.org/10.1007/s10278-017-0009-z

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