An ElectroMechanical Model Of the Heart for Cardiac Image Analysis

Here are some graphical results of the model described in the publications, in image, video and VRML mesh formats. You can also find additional information on the web pages of the Collaborative Research Action ICEMA (mainly in french) and ICEMA2.

Images:

Simulated Electrical Propagation Isochrones:

Simulated Electromechanical Contraction and visualisation of the result on the left ventricle endocardium:

3D Image Segmentation with a volumetric deformable biomechanical model:

Electromechanical Model in a 3D Image

Videos:

Electrical wave propagation

• isotropic wave (3 Mo)
• slightly anisotropic wave (2.1 Mo)
• very anisotropic wave (2.1 Mo)

Electrical wave propagation + Mechanical contraction

• depolarization wave + contraction + relaxation (3.5 Mo)
• depolarization wave + contraction + relaxation (viewpoint up) (4.0 Mo)
• contraction + relaxation (left ventricle endocardium surface) (1.0 Mo)

Interaction with 3D images

Between the canine heart model and a segmented image of the Visible Man

• Global Rigid Transformation (5.7 Mo)
• Global Similarity Transformation (1.6 Mo)
• Global Affine Transformation (3.7 Mo)
• Local Transformation (1.6 Mo)

Between the canine heart model and a human cardiac MRI (rigid -> similarity -> affine -> local deformation)

• Along the Y plane (8.9 Mo)
• Along the Z plane (21 Mo)
• 3D View (15 Mo)

Meshes:

Compressed VRML1 files of the beating heart mesh during the simulated cycle (or compressed archive of all the files). Each mesh represents a 0.01 s step of the simulation. These meshes are the volumetric electromechanical model extracted surfaces. Original myocardium geometry and fiber directions are courtesy of the Cardiac Mechanics Research Group of UCSD.