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3D Whole-heart Myocardial Tissue Analysis
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M-SiSSR: Regional Endocardial Function Using Multilabel Simultaneous Subdivision Surface Registration.

Davis M Vigneault1, Francisco Contijoch2, Christopher P Bridge3

  • 1Department of Internal Medicine, Scripps Mercy Hospital, San Diego, CA, USA.

Functional Imaging and Modeling of the Heart : ... International Workshop, FIMH ..., Proceedings. FIMH
|March 15, 2022
PubMed
Summary
This summary is machine-generated.

A new Multilabel-Simultaneous Subdivision Surface Registration (M-SiSSR) method improves cardiac mesh registration by distinguishing between cardiac chambers. This enhances the accuracy of regional cardiac function measurements, particularly tracking the mitral valve plane.

Keywords:
Cardiac Computed Tomography (CCT)Convolutional Neural Networks (CNNs)Mesh registrationRegional cardiac functionSubdivision surfaces

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Area of Science:

  • Cardiology
  • Medical Imaging
  • Computational Anatomy

Background:

  • Accurate quantification of regional cardiac function is crucial in cardiology.
  • Existing methods like Coherent Point Drift (CPD) and Simultaneous Subdivision Surface Registration (SiSSR) lack chamber-specific registration, leading to potential mesh slippage and inaccurate functional measurements.

Purpose of the Study:

  • To introduce Multilabel-SiSSR (M-SiSSR), a novel method for registering labeled cardiac meshes that accounts for different cardiac structures.
  • To evaluate the performance of M-SiSSR compared to the label-agnostic SiSSR for improved cardiac function tracking.

Main Methods:

  • Developed M-SiSSR, a registration technique that assigns each triangle of a cardiac mesh to a specific cardiac structure.
  • Compared M-SiSSR against the original SiSSR in tracking the endocardial surface and mitral valve plane.

Main Results:

  • M-SiSSR demonstrated both visual and quantitative improvements over the label-agnostic SiSSR.
  • Enhanced accuracy was observed in tracking the mitral valve plane, a critical landmark for cardiac function.

Conclusions:

  • M-SiSSR offers a significant advancement in cardiac mesh registration by incorporating anatomical labels.
  • This method promises more precise regional cardiac function quantification by preventing mesh slippage across chamber interfaces.