CineMesh4D: 4D Whole Heart Reconstruction from Sparse Cine MRI
A team of researchers has introduced CineMesh4D, an innovative end-to-end pipeline for 4D (3D+t) reconstruction that generates patient-specific whole-heart meshes from multi-view 2D cine MRI through cross-domain mapping. This technique features a differentiable rendering loss that allows for supervision using sparse contours from multiple views, along with a dual-context temporal block that integrates both global and local cardiac temporal data to identify complex sequential patterns. Unlike existing methods that often reconstruct only a portion of the chambers or a single phase, this work tackles the issues of sparse 3D sampling and the close relationship between shape and motion.
Key facts
- CineMesh4D is a 4D whole-heart reconstruction method from sparse cine MRI.
- It uses a differentiable rendering loss for supervision from multi-view sparse contours.
- A dual-context temporal block fuses global and local cardiac temporal information.
- Current methods reconstruct only a subset of chambers or a single phase.
- The pipeline is end-to-end and patient-specific.
- It addresses sparse 3D sampling and shape-motion coupling.
- The method is proposed in arXiv:2605.13994.
- The approach is clinically relevant for cardiac imaging.
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