نشریه علمی مهندسی پزشکی زیستی

Automated Detection of Brain Arteriovenous Malformation from Conventional MRI Using an Ensemble of Vision Transformers

Document Type : Full Research Paper

Authors

1 Department of Biomedical Engineering, Ma.C., Islamic Azad University, Mashhad, Iran.

2 Department of Biomedical Engineering, Ma.C., Islamic Azad University, Birjand, Iran.

3 Department of Neurology, School of Medicine, Neurology Research Center, Birjand University of Medical Sciences, Birjand, Iran.

4 Department of Biomedical Engineering, Bi.C., Islamic Azad University, Birjand, Iran.

10.22041/ijbme.2026.2089964.2037
Abstract
Early diagnosis of brain Arteriovenous Malformation (AVM) plays a vital role in preventing irreversible

complications; however, standard diagnostic methods such as angiography are often invasive and costly,

and accurate detection of this condition in conventional MRI images is difficult even for specialists due to

subtle tissue differences. The present research was conducted with the aim of developing an intelligent

system for automatic AVM and other Arteriovenous Malformation diagnosis based on standard Brain MRI

images (T2-weighted and FLAIR) without the need for supplementary MRA data. In this study, a dataset

comprising 538 cases (274 patients and 264 healthy individuals) was collected from Valiasr Hospital in

Birjand, and after applying preprocessing and selecting key slices, the performance of several advanced

Vision Transformer (ViT) architectures, including Google ViT, Microsoft BEiT, and Facebook ViT, was

evaluated using a voting mechanism. The results demonstrated that the Google ViT model, achieving 100%

sensitivity (Recall) and an F1-score of 83.9%, delivered the superior performance and succeeded in

identifying all positive cases with zero false negatives, surpassing the performance of human experts. By

identifying hidden patterns and secondary changes in brain tissue, this model provides an accurate, rapid,

and non-invasive tool for AVM screening that can be utilized as a complement or alternative to complex

diagnostic methods in clinical settings.

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Articles in Press, Accepted Manuscript
Available Online from 06 October 2026

  • Receive Date 29 May 2026
  • Revise Date 25 September 2026
  • Accept Date 06 October 2026