{"ID":2872792,"CreatedAt":"2026-06-01T04:54:23.091178241Z","UpdatedAt":"2026-06-01T04:54:23.091178241Z","DeletedAt":null,"paper_url":"https://arxiv.org/abs/2509.09004","arxiv_id":"2509.09004","title":"Implicit Neural Representations of Intramyocardial Motion and Strain","abstract":"Automatic quantification of intramyocardial motion and strain from tagging MRI remains an important but challenging task. We propose a method using implicit neural representations (INRs), conditioned on learned latent codes, to predict continuous left ventricular (LV) displacement -- without requiring inference-time optimisation. Evaluated on 452 UK Biobank test cases, our method achieved the best tracking accuracy (2.14 mm RMSE) and the lowest combined error in global circumferential (2.86%) and radial (6.42%) strain compared to three deep learning baselines. In addition, our method is $\\sim$380$\\times$ faster than the most accurate baseline. These results highlight the suitability of INR-based models for accurate and scalable analysis of myocardial strain in large CMR datasets. The code can be found at https://github.com/andrewjackbell/Displacement-INR","short_abstract":"Automatic quantification of intramyocardial motion and strain from tagging MRI remains an important but challenging task. We propose a method using implicit neural representations (INRs), conditioned on learned latent codes, to predict continuous left ventricular (LV) displacement -- without requiring inference-time op...","url_abs":"https://arxiv.org/abs/2509.09004","url_pdf":"https://arxiv.org/pdf/2509.09004v4","authors":"[\"Andrew Bell\",\"Yan Kit Choi\",\"Steffen E Petersen\",\"Andrew King\",\"Muhummad Sohaib Nazir\",\"Alistair A Young\"]","published":"2025-09-10T21:05:27Z","proceeding":"cs.CV","tasks":"[\"cs.CV\",\"cs.AI\"]","methods":"[]","has_code":false,"code_links":[{"ID":610002,"CreatedAt":"2026-06-01T04:54:23.091178241Z","UpdatedAt":"2026-06-01T04:54:23.091178241Z","DeletedAt":null,"paper_id":2872792,"paper_url":"https://arxiv.org/abs/2509.09004","paper_title":"Implicit Neural Representations of Intramyocardial Motion and Strain","repo_url":"https://github.com/andrewjackbell/Displacement-INR","is_official":false,"mentioned_in_paper":false,"mentioned_in_github":true,"github_stars":0}]}