2024/10/28 by Thomas Olausson, Maarten L. Terpstra, Olausson, Thomas E. +17
Medicine · #Advanced MRI Techniques and Applications #Cardiac Imaging and Diagnostics #Cardiovascular Function and Risk Factors #FOS: Physical sciences #Medical Physics (physics.med-ph)
paper · pdf · doi:10.48550/arxiv.2410.21011
openalex publication_date 2024/10/28 · openalex created_date 2024/11/14 · openalex updated_date 2026/07/28
We present a novel approach for the reconstruction of time-resolved free-running first-pass myocardial perfusion MRI, named CMR-MOTUS. This method builds upon the MR-MOTUS framework and addresses the challenges of a contrast varying reference image. By integrating a low-rank plus sparse (L+S) decomposition, CMR-MOTUS efficiently captures both motion fields and contrast variations. This innovative technique eliminates the need for acquiring a motion-static reference image prior to the examination, thereby reducing examination time and complexity for cardiac MRI examinations. Our results demonstrate that CMR-MOTUS can successfully disentangle different dynamic components, offering high-quality motion fields and motion correct a myocardial first-pass perfusion image series.