Automatic estimation of aortic and mitral valve displacements in dynamic CTA with 4D graph-cuts.

ABSTRACT: The location of the mitral and aortic valves in dynamic cardiac imaging is useful for extracting functional derived parameters such as ejection fraction, valve excursions, and global longitudinal strain, and when performing anatomical structures tracking using slice following or valve intervention's planning. Completely automatic segmentation methods are still challenging tasks because of their fast movements and the different positions that prevent good visibility of the leaflets along the full cardiac cycle. In this article, we propose a processing pipeline to track the displacement of the aortic and mitral valve annuli from high-resolution cardiac four-dimensional computed tomographic angiography (4D-CTA). The proposed method is based on the dynamic separation of left ventricle, left at

SUBMITTER: Ortuno JE 

PROVIDER: S-EPMC7722502 | biostudies-literature | 2020 Oct

REPOSITORIES: biostudies-literature