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International Journal of Computer Assisted Radiology and Surgery

Erschienen in:

12.05.2021 | Original Article

Automatic extraction of the mitral valve chordae geometry for biomechanical simulation

verfasst von: Daryna Panicheva, Pierre-Frédéric Villard, Peter E. Hammer, Douglas Perrin, Marie-Odile Berger

Erschienen in: International Journal of Computer Assisted Radiology and Surgery | Ausgabe 5/2021

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Abstract

Purpose

Mitral valve computational models are widely studied in the literature. They can be used for preoperative planning or anatomical understanding. Manual extraction of the valve geometry on medical images is tedious and requires special training, while automatic segmentation is still an open problem.

Methods

We propose here a fully automatic pipeline to extract the valve chordae architecture compatible with a computational model. First, an initial segmentation is obtained by sub-mesh topology analysis and RANSAC-like model-fitting procedure. Then, the chordal structure is optimized with respect to objective functions based on mechanical, anatomical, and image-based considerations.

Results

The approach has been validated on 5 micro-CT scans with a graph-based metric and has shown an \(87.5\%\) accuracy rate. The method has also been tested within a structural simulation of the mitral valve closed state.

Conclusion

Our results show that the chordae architecture resulting from our algorithm can give results similar to experienced users while providing an equivalent biomechanical simulation.

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Titel: Automatic extraction of the mitral valve chordae geometry for biomechanical simulation
verfasst von: Daryna Panicheva
Pierre-Frédéric Villard
Peter E. Hammer
Douglas Perrin
Marie-Odile Berger
Publikationsdatum: 12.05.2021
Verlag: Springer International Publishing
Erschienen in: International Journal of Computer Assisted Radiology and Surgery / Ausgabe 5/2021
Print ISSN: 1861-6410
Elektronische ISSN: 1861-6429
DOI: https://doi.org/10.1007/s11548-021-02368-3

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Automatic extraction of the mitral valve chordae geometry for biomechanical simulation

Abstract

Purpose

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Results

Conclusion

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Springer Medizin

Abstract

Purpose

Methods

Results

Conclusion

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