Dr. Ellingson is the Director of the UCLA Brain Tumor Imaging Laboratory (BTIL), Co-Director of the Center for Computer Vision and Imaging Biomarkers, and a member of the UCLA Brain Tumor Program. Dr. Ellingson's research involves the development, testing, and implementation of advanced MRI and PET imaging biomarkers for the characterization of brain tumor biology and response evaluation in clinical trials. Dr. Ellingson has been a co-author on more than 100 peer-reviewed original research articles relating to neuroimaging. Dr. Ellingson has extensive experience performing data management and imaging analysis in multicenter clinical trials in brain cancer and he currently serves as the Chair of the Neuro-Imaging Committee for the NIH-funded Adult rain Tumor Consortium (ABTC), Chair of the Imaging Committee for the en and Catherine Ivy Foundation Consortium for Early Phase Clinical Trials, Chair of the Imaging Committee for the new Glioblastoma Global Adaptive Trial, is a member of the ACRIN head/neck/neuro committee imaging committee, and is the co-chair the imaging committee for specific brain tumor trials run by the Alliance for Clinical Trials in Oncology.