Contribution of atrial myofiber architecture to atrial fibrillation

Figures

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  Fig 1. The segmentation of the high-resolution T1-weighted MRI used for the accurate fiber orientation detection using DTI.

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  Fig 2. DTI based fiber orientation. a) Different views of the left atrium in one animal with the 3D fiber orientation before region selection. b) Fiber orientations color coded with helix angle (from 0 to 90 degree) with the vector perpendicular to the mitral valve plane (vector 1) chosen as the reference vector. c) Fibers in the eight different selected regions, each with a different color. d) Spheres chosen for regional seeding of the regions shown with different colors.

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  Fig 3. Reference vectors for comparing the fiber direction s between different regions of the left atrium and across different animals. Vector 1 (shown in red) is perpendicular to the mitral valve plane and vector 2 (shown in green) lays on the plane parallel to the mitral valve and starts from the midpoint between pulmonary veins to the tip of the appendage.

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  Fig 4. Anterior views of 3D fiber orientations in all scanned goats categorized based on their AF inducibility. The reference vector 1 is shown in red and reference vector 2 is shown in green.

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  Fig 5. Posterior views of 3D fiber orientations in all scanned goats categorized based on their AF inducibility. The reference vector 1 is shown in red and reference vector 2 is shown in green.