BPENet: Boundary perception enhancement network for retinal vessel and coronary angiogram segmentation

Linfeng Kong1,2, Yun Wu1,2

  • 1State Key Laboratory of Public Big Data, Guizhou University, Guiyang, China.

Insights

This study introduces BPENet, a novel network for improved vessel segmentation. BPENet enhances boundary detection, leading to more accurate results for retinal and coronary artery diseases.

Area of Science:

  • Medical Imaging
  • Computer Vision
  • Biomedical Engineering

Background:

  • Accurate vessel segmentation is vital for diagnosing diseases like retinal and coronary artery conditions.
  • Existing segmentation methods struggle with precise vessel boundary delineation, posing a challenge for clinical applications.

Purpose of the Study:

  • To improve vessel segmentation accuracy by addressing the challenge of poor boundary segmentation.
  • To introduce a novel network, the Boundary Perception Enhancement Network (BPENet), for enhanced vessel segmentation.

Main Methods:

  • BPENet integrates a boundary detection auxiliary task with the main segmentation task.
  • Key modules include Feature Extraction Enhancement (FE2) for feature extraction, Boundary Enhancement (BE) for boundary perception, and Deep Feature Aggregation (DFA) for multi-layer feature utilization.

Main Results:

  • BPENet demonstrated superior performance compared to existing mainstream methods on retinal vessel datasets (DRIVE, CHASE-DB1, STARE) and coronary angiogram datasets (DCA1, XCAD).
  • The proposed modules effectively enhanced feature extraction, boundary perception, and feature aggregation.

Conclusions:

  • BPENet offers a reliable solution for accurate vessel segmentation, particularly in challenging cases with unclear boundaries.
  • The network is expected to aid clinicians in the diagnosis and treatment of various vascular diseases.