Journal
ISCIENCE
Volume 26, Issue 1, Pages -Publisher
CELL PRESS
DOI: 10.1016/j.isci.2022.105872
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This study developed an end-to-end deep learning architecture called ViT-WSI for brain tumor analysis, which can classify the major types and subtypes of primary brain tumors. By using gradient-based attribution analysis, ViT-WSI is able to discover histopathological features for diagnosis. Additionally, ViT-WSI has shown high predictive power for inferring the status of three glioma molecular markers directly from H&E-stained histopathological images.
Diagnosis of primary brain tumors relies heavily on histopathology. Although various computational pathology methods have been developed for automated diagnosis of primary brain tumors, they usually require neuropathologists' annotation of region of interests or selection of image patches on whole-slide images (WSI). We developed an end-to-end Vision Transformer (ViT) - based deep learning architecture for brain tumor WSI analysis, yielding a highly interpretable deep-learning model, ViT-WSI. Based on the principle of weakly supervised machine learning, ViT-WSI accomplishes the task of major primary brain tumor type and subtype classification. Using a systematic gradient-based attribution analysis procedure, ViT-WSI can discover diagnostic histopathological features for primary brain tumors. Furthermore, we demonstrated that ViT-WSI has high predictive power of inferring the status of three diagnostic glioma molecular markers, IDH1 mutation, p53 mutation, and MGMT methylation, directly from H&E-stained histopathological images, with patient level AUC scores of 0.960, 0.874, and 0.845, respectively.
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