@article{echo4dir4dimplicitheartreconstructionfro,
  title = {Echo4DIR: 4D Implicit Heart Reconstruction from 2D Echocardiography Videos},
  author = {Yanan Liu and Qinya Li and Hao Zhang and Kangjian He and Xuan Yang and Hao Li and Dan Xu and Lei Li},
  year = {2026},
  eprint = {2605.22066},
  archivePrefix = {arXiv},
  url = {https://arxiv.org/abs/2605.22066},
}