Free-Breathing 3D T1 Mapping of the Whole-Heart Using Low-Rank Tensor Modeling
Paul Kyu Han1, Debra E. Horng1, Yoann Petibon1, Jinsong Ouyang1, Nathaniel Alpert1, Georges El Fakhri1, and Chao Ma1
1Gordon Center for Medical Imaging, Massachusetts General Hospital and Harvard Medical School, Boston, MA, United States
T1 of the myocardium is an emerging quantitative biomarker for a variety of heart diseases. However, T1 mapping is challenging in the heart due to the cardiac and respiratory motion. To overcome this issue, T1 mapping methods utilizing ECG triggering with breath-hold or respiratory control using bellow or navigators have been developed in the past. Recently, low-rank tensor-based approach has been proposed for MR to enable image reconstruction at extremely high acceleration factors, and has demonstrated promising results. This work presents a low-rank tensor-based approach for free-breathing 3D T1 mapping of the whole-heart.
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