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Abstract #0398

Deep Learning Algorithm for Prediction of Molecular Subtypes and Grades in Adult-type Diffuse Gliomas: According to the 2021 WHO Updates

Yunsu Byeon1, Yae Won Park2, Soohyun Lee1, HyungSeob Shin1, Doohyun Park1, Sung Soo Ahn2, Seung-Koo Lee2, and Dosik Hwang1,2,3,4
1School of Electrical and Electronic Engineering, Yonsei University, Seoul, Korea, Republic of, 2Radiology, Yonsei University College of Medicine, Seoul, Korea, Republic of, 3Center for Healthcare Robotics, Korea Institute of Science and Technology, Seoul, Korea, Republic of, 4Department of Oral and Maxillofacial Radiology, Yonsei University College of Dentistry, Seoul, Korea, Republic of

Synopsis

Keywords: Tumors (Pre-Treatment), Cancer

Motivation: Noninvasive prediction of molecular subtype and grade in adult-type diffuse gliomas based on 2021 WHO classification can aid in clinical practice.

Goal(s): To establish a robust and interpretable deep learning model for molecular subtyping and grading in adult-type diffuse gliomas.

Approach: Institutional multiparametric MRI data (n=1,053) were used to train deep learning models, including 2D CNN and Vision Transformer. Our models were externally validated on the TCGA dataset (n=200). Explainable AI methods were used to interpret the predictions of our models.

Results: ViT outperformed CNN with AUCs of 0.87, 0.73, and 0.81 for prediction of IDH mutation, 1p/19q codeletion, and grading, respectively.

Impact: Our study demonstrates that Vision Transformer provides reliable and interpretable prediction of molecular subtype and grades in adult-type diffuse gliomas based on the 2021 WHO classification using multiparametric MRI data.

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