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Abstract #0505

Utilizing deep learning for automatic longitudinal assessment of brain tumor response based on RANO criteria

Idan Bressler1,2, Dafna Ben Bashat1,3,4, Orna Aizensein3,5, Felix Bokestein3,6, Deborah T Blumenthal3,6, and Moran Artzi1,3,4

1Sagol Brain Institute, Tel Aviv Sourasky Medical Center, Tel - Aviv, Israel, 2The Iby and Aladar Fleischman Faculty of Engineering, Tel Aviv University, Tel - Aviv, Israel, 3Sackler Faculty of Medicine, Tel Aviv University, Tel - Aviv, Israel, 4Sagol School of Neuroscience, Tel Aviv University, Tel - Aviv, Israel, 5Division of Radiology, Tel Aviv Sourasky Medical Center, Tel - Aviv, Israel, 6Neuro-Oncology Service, Tel Aviv Sourasky Medical Center, Tel - Aviv, Israel

The aim of this study was to implement a deep-learning approach for automatic therapy response assessment in patients with high-grade-glioma (HGG), based on the response-assessment in neuro-oncology (RANO) criteria. A total of 135 conventional MRI scans from 67 patients were included. A neural network with a U-net architecture was trained for identification and subsegmentation of lesion components. The similarity coefficient score between segmentation results and ground truth was 0.88±0.06. Consistency in therapy response assessment was obtained in the majority of cases. These results demonstrate the potential applicability of the proposed method for automatic therapy response assesment in patients with HGG.

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