Anatomically Detailed Human Atrial FE Meshes
Creators
- 1. Gottfried Schatz Research Center: Division of Biophysics, Medical University of Graz, Graz, Austria
- 2. Department of Biomedical Engineering, King's College London, London, UK
- 3. Medical University of Graz
- 4. Northeastern University, Boston, USA
- 5. Department of Cardiology, Guy's and St Thomas' Hospitals, London, UK
Description
The left atrium (LA) has a complex anatomy with heterogeneous wall thickness and curvature. We include 3 patient-specific anatomical FE meshes with rule-based myofiber directions of each of the anatomies included in our study ("The impact of wall thickness and curvature on wall stress in patient-specific electromechanical models of the left atrium", BMMB, 2020, https://pubmed.ncbi.nlm.nih.gov/31802292/).
Additionally we include
- a model with Gaussian noise added (mean 0 um , standard deviation 100 um) to the initial geometry of patient case 3 and subsequently smoothed using ParaView; and
- a mesh with a constant wall thickness of 0.5 mm generated based on the endocardial surface of patient case 3.
The meshes are given in VTK file format (.vtu) and in the binary format used for the Cardiac Arrhythmia Research Package simulator, see https://carpentry.medunigraz.at/carputils/index.html and https://opencarp.org. Here, for each of the geometries, we include a list of nodal coordinates (.bpts file), a list of triangular elements (.belem file), fiber fields (.blon file), surface files (*.surf files), and surface points (*.surf.vtx files).
Surface files include the endocardium (laendo.surf), the epicardium (laepi.surf), the mitral valve ring (mitralvv.surf), the pulmonary outlet rings (pulvring.surf) and lids (lid*.vtx) to close the five in- and outlets of the LA.
Using the open source mesh utiliy "MeshTool" (https://bitbucket.org/aneic/meshtool/src/master/README.md)
meshes can be manipulated or converted to VTK or EnSight file formats.
Files
atrial_meshes.zip
Files
(1.6 GB)
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Additional details
Related works
- Compiles
- Journal article: 10.1007/s10237-019-01268-5 (DOI)
Funding
- UK Research and Innovation
- Modelling Cardiac Energy Supply during Heart Failure EP/F043929/1
- FWF Austrian Science Fund
- Mathematical Optimization and Applications in Biomedical Sciences F 32
- European Commission
- InsiliCardio – Image-based High-resolution In-silico Modeling of Total Cardiac Function 750835
- UK Research and Innovation
- Understanding the Mechanistic Links Between Mid-Wall Fibrosis and Arrhythmic Risk in Non-Ischemic DCM Using a Combined Modelling & Clinical Approach MR/N011007/1
- UK Research and Innovation
- Uncertainty Quantification in Prospective and Predictive Patient Specific Cardiac Models EP/P01268X/1
- FWF Austrian Science Fund
- Personalized Multiphysics Simulations for Honing Cardiac Resynchronization Therapy (PUSHCART) I 2760
- UK Research and Innovation
- Determination of left atrial wall thickness and its influence on electroanatomic properties in the human atrium MR/N001877/1