English

Attention-based convolutional neural network for perfusion T2-weighted MR images preprocessing

Image and Video Processing 2024-05-15 v1 Machine Learning

Abstract

Accurate skull-stripping is crucial preprocessing in dynamic susceptibility contrast-enhanced perfusion magnetic resonance data analysis. The presence of non-brain tissues impacts the perfusion parameters assessment. In this study, we propose different integration strategies for the spatial and channel squeeze and excitation attention mechanism into the baseline U-Net+ResNet neural network architecture to provide automatic skull-striping i.e., Standard scSE, scSE-PRE, scSE-POST, and scSE Identity strategies of plugging of scSE block into the ResNet backbone. We comprehensively investigate the performance of skull-stripping in T2-star weighted MR images with abnormal brain anatomy. The comparison that utilizing any of the proposed strategies provides the robustness of skull-stripping. However, the scSE-POST integration strategy provides the best result with an average Dice Coefficient of 0.9810.

Keywords

Cite

@article{arxiv.2303.02518,
  title  = {Attention-based convolutional neural network for perfusion T2-weighted MR images preprocessing},
  author = {Svitlana Alkhimova and Oleksii Diumin},
  journal= {arXiv preprint arXiv:2303.02518},
  year   = {2024}
}

Comments

7 pages, 4 figures

R2 v1 2026-06-28T09:01:37.513Z