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ADSeg: A flap-attention-based deep learning approach for aortic dissection segmentation. | LitMetric

AI Article Synopsis

  • Accurate and rapid segmentation of the lumen in aortic dissection is crucial for patient risk assessment and treatment planning.
  • Recent studies have advanced segmentation techniques but often overlook the intimal flap, which distinguishes between true and false lumens.
  • This study introduces a flap attention module and a cascaded network structure to enhance segmentation accuracy, resulting in the ADSeg method that shows significant improvement over previous techniques on a diverse dataset.

Article Abstract

Accurate and rapid segmentation of the lumen in an aortic dissection (AD) is an important prerequisite for risk evaluation and medical planning for patients with this serious condition. Although some recent studies have pioneered technical advances for the challenging AD segmentation task, they generally neglect the intimal flap structure that separates the true and false lumens. Identification and segmentation of the intimal flap may simplify AD segmentation, and the incorporation of long-distance z axis information interaction along the curved aorta may improve segmentation accuracy. This study proposes a flap attention module that focuses on key flap voxels and performs operations with long-distance attention. In addition, a pragmatic cascaded network structure with feature reuse and a two-step training strategy are presented to fully exploit network representation power. The proposed ADSeg method was evaluated on a multicenter dataset of 108 cases, with or without thrombus; ADSeg outperformed previous state-of-the-art methods by a significant margin and was robust against center variation.

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Source
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC10201300PMC
http://dx.doi.org/10.1016/j.patter.2023.100727DOI Listing

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