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Related Experiment Video

Updated: Feb 5, 2026

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Multiple Aneurysms AnaTomy CHallenge 2018 (MATCH): Phase I: Segmentation.

Philipp Berg1,2, Samuel Voß3,4, Sylvia Saalfeld5,4

  • 1Department of Fluid Dynamics and Technical Flows, University of Magdeburg, Magdeburg, Germany. berg@ovgu.de.

Cardiovascular Engineering and Technology
|September 8, 2018
PubMed
Summary
This summary is machine-generated.

Segmentation of intracranial aneurysms (IAs) lacks consensus, impacting rupture risk assessment. The Multiple Aneurysms AnaTomy CHallenge (MATCH) revealed significant variability in segmentation results, highlighting the need for improved processing for accurate morphological analysis.

Keywords:
ChallengeIntracranial aneurysmMorphologySegmentation

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Area of Science:

  • Medical Imaging
  • Computational Fluid Dynamics
  • Neurosurgery

Background:

  • Accurate intracranial aneurysm (IA) rupture risk assessment relies on advanced morphology analysis and image-based hemodynamic simulations.
  • Vessel wall segmentation quality is critical for the accuracy of these IA assessments.

Purpose of the Study:

  • To evaluate state-of-the-art segmentation approaches for intracranial aneurysms (IAs).
  • To identify variability and challenges in IA segmentation through a multi-group challenge.

Main Methods:

  • The Multiple Aneurysms AnaTomy CHallenge (MATCH) involved 26 groups segmenting five IAs across three anonymized 3D DSA datasets.
  • Comparisons included qualitative and quantitative analysis of aneurysm volumes, ostia, and over/undersegmentation against high-resolution 2D images.
  • Calculation of clinically relevant morphological parameters like undulation and non-sphericity.

Main Results:

  • No consensus was found regarding segmentation software or algorithms among participating groups.
  • Significant inter-group differences were observed in luminal surface quality, vessel branch inclusion, aneurysm volumes (up to 20%), and ostium surface areas (up to 30%).
  • A systematic 3D surface oversegmentation of approximately 10% was noted, with IA necks frequently overrepresented.

Conclusions:

  • The Multiple Aneurysms AnaTomy CHallenge (MATCH) highlights significant variability in IA surface reconstruction methodologies.
  • There is a critical need for standardized and careful processing of segmentation results to ensure realistic assessment of IA morphology.
  • Improved segmentation accuracy is essential for reliable IA rupture risk evaluation.