Radiogenomics in Neurooncology
Olivier Gevaert1

1Stanford University, Stanford, CA, United States

Synopsis

Radiogenomics in Neurooncology

Vast amounts of molecular data characterizing the genome, epi-genome and transcriptome are becoming available for a wide range of cancers. In addition, new computational tools for quantitatively analyzing medical and pathological images are creating new types of phenotypic data. Now we have the opportunity to integrate the data at molecular, cellular and tissue scale to create a more comprehensive view of key biological processes underlying cancer. Our goal is to develop computational methods to realize multi-scale biomedical data fusion. To accomplish this we develop computational methods to derive quantitative image features from MR images that characterize the radiographic phenotype of glioblastoma lesions. Based on these quantitative image features we create radiogenomic maps by associating the radiographic phenotype with various molecular data. These models can have profound contributions towards predicting diagnosis and treatment. Our results show that radiogenomic approaches studying brain tumors have the potential to predict clinical and molecular characteristics of tumors non-invasively.

Acknowledgements

National Institute of Biomedical Imaging and Bioengineering of the National Institutes of Health under Award Number R01EB020527.

References

Liu TT, Achrol AS, Mitchell LA, Rodriguez SA, Feroze A; Michael Iv., Kim C, Chaudhary N, Gevaert O, Stuart JM, Harsh GR, Chang SD, Rubin DL. Magnetic resonance perfusion image features uncover an angiogenic subgroup of glioblastoma patients with poor survival and better response to antiangiogenic treatment. Neuro Oncol. 2016 Dec 22. pii: now270. doi: 10.1093/neuonc/now270. [Epub ahead of print] PubMed PMID: 28007759.

Itakura H, Achrol AS, Mitchell LA, Loya JJ, Liu T, Westbroek EM, Feroze AH, Rodriguez S, Echegaray S, Azad TD, Yeom KW, Napel S, Rubin DL, Chang SD, Harsh GR 4th, Gevaert O. Magnetic resonance image features identify glioblastoma phenotypic subtypes with distinct molecular pathway activities. Sci Transl Med. 2015 Sep 2;7(303):303ra138. doi: 10.1126/scitranslmed.aaa7582. PubMed PMID: 26333934; PubMed Central PMCID: PMC4666025.

Gevaert O, Mitchell LA, Achrol AS, Xu J, Echegaray S, Steinberg GK, Cheshier SH, Napel S, Zaharchuk G, Plevritis SK. Glioblastoma Multiforme: Exploratory Radiogenomic Analysis by Using Quantitative Image Features. Radiology. 2015 Jul;276(1):313. doi: 10.1148/radiol.2015154019. PubMed PMID: 26101929; PubMed Central PMCID: PMC4725327.

Proc. Intl. Soc. Mag. Reson. Med. 25 (2017)