CineMesh4D: Personalized 4D Whole Heart Reconstruction from Sparse Cine MRI

• URL: http://arxiv.org/abs/2605.13994v1
• Date: Wed, 13 May 2026 18:05:08 GMT
• Title: CineMesh4D: Personalized 4D Whole Heart Reconstruction from Sparse Cine MRI
• Abstract summary: We propose CineMesh4D, a novel end-to-end 4D (3D+t) pipeline that directly reconstructs patient-specific whole-heart mesh from cine MRI.<n>CineMesh4D outperforms existing approaches in terms of reconstruction quality and motion consistency.
• Score: 7.535721717099375
• License: http://creativecommons.org/licenses/by/4.0/
• Abstract: Accurate 3D+t whole-heart mesh reconstruction from cine MRI is a clinically crucial yet technically challenging task. The difficulty of this task arises from two coupled factors: inherently sparse sampling of 3D cardiac anatomy by 2D image slices and the tight coupling between cardiac shape and motion. Current cardiac image-to-mesh approaches typically reconstruct only a subset of cardiac chambers or a single phase of the cardiac cycle. In this work, we propose CineMesh4D, a novel end-to-end 4D (3D+t) pipeline that directly reconstructs patient-specific whole-heart mesh from multi-view 2D cine MRI via cross-domain mapping. Specifically, we introduce a differentiable rendering loss that enables supervision of 3D+t whole-heart mesh from multi-view sparse contours of cine MRI. Furthermore, we develop a dual-context temporal block that fuses global and local cardiac temporal information to capture high-dimensional sequential patterns. In quantitative and qualitative evaluations, CineMesh4D outperforms existing approaches in terms of reconstruction quality and motion consistency, providing a practical pathway for personalized real-time cardiac assessment. The code will be publicly released once the manuscript is accepted.

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