Cited by 161Radiomics and Machine Learning in Medical ImagingLung Cancer Diagnosis and TreatmentLung Cancer Treatments and Mutations

Predictive radiogenomics modeling of EGFR mutation status in lung cancer

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Gevaert, Olivier, Echegaray, Sebastian, Khuong, Amanda, Hoang, Chuong D., Shrager, Joseph B., Jensen, Kirstin C., Berry, Gerald J., Guo, H. Henry +5 more·2017·Scientific Reports

Abstract

Molecular analysis of the mutation status for EGFR and KRAS are now routine in the management of non-small cell lung cancer. Radiogenomics, the linking of medical images with the genomic properties of human tumors, provides exciting opportunities for non-invasive diagnostics and prognostics. We investigated whether EGFR and KRAS mutation status can be predicted using imaging data. To accomplish this, we studied 186 cases of NSCLC with preoperative thin-slice CT scans. A thoracic radiologist annotated 89 semantic image features of each patient's tumor. Next, we built a decision tree to predict the presence of EGFR and KRAS mutations. We found a statistically significant model for predicting EGFR but not for KRAS mutations. The test set area under the ROC curve for predicting EGFR mutation status was 0.89. The final decision tree used four variables: emphysema, airway abnormality, the percentage of ground glass component and the type of tumor margin. The presence of either of the first two features predicts a wild type status for EGFR while the presence of any ground glass component indicates EGFR mutations. These results show the potential of quantitative imaging to predict molecular properties in a non-invasive manner, as CT imaging is more readily available than biopsies.

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Authors
Gevaert, O., Echegaray, S., Khuong, A., Hoang, C. D., Shrager, J. B., Jensen, K. C., Berry, G. J., Guo, H. H., Lau, C., Plevritis, S. K., Rubin, D. L., Napel, S., & Leung, A. N.
Affiliations
  • Stanford Medicine (US)
  • National Institutes of Health (US)
  • VA Palo Alto Health Care System (US)
Corresponding author
Gevaert, Olivier
Venue
Scientific Reports
Published
2017-01-31
Volume
7
Issue
1
Pages
41674-41674
ISSN
2045-2322 (ISSN-L)
OpenAlex
W2584323939
Cited by
160
References
37
Citations by year
2026: 9 · 2025: 11 · 2024: 8 · 2023: 20 · 2022: 26 · 2021: 25 · 2020: 25 · 2019: 16 · 2018: 16 · 2017: 4
FWCI
12.80
Type
journal article
Language
en
Open access
Locations
  • Scientific Reports (publishedVersion, cc-by)
  • PubMed Central (publishedVersion, cc-by)
  • PubMed (publishedVersion)
Funders
  • National Institutes of Health
  • National Cancer Institute (U01CA190214, R01CA160251, U01CA187947)
  • National Institute of Biomedical Imaging and Bioengineering (R01EB020527)
Topics
  • Health Sciences › Medicine › Radiology, Nuclear Medicine and Imaging › Radiomics and Machine Learning in Medical Imaging
  • Health Sciences › Medicine › Pulmonary and Respiratory Medicine › Lung Cancer Diagnosis and Treatment
  • Health Sciences › Medicine › Pulmonary and Respiratory Medicine › Lung Cancer Treatments and Mutations
Keywords
radiogenomics, EGFR mutation, KRAS mutation, non-small cell lung cancer, computed tomography, tumor margin, emphysema, decision tree
MeSH terms
Decision Trees, Female, Humans, Lung Neoplasms, Male, Mutation, Biomarkers, Tumor, Multivariate Analysis, Proto-Oncogene Proteins p21(ras), Area Under Curve, Genomics, ErbB Receptors

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