Abstract #1616

Myocardial T1 Mapping Using Single-Shot Inversion-Recovery Radial FLASH: Comparison of Subspace and Nonlinear Model-Based Reconstruction

Martin Schilling¹, Moritz Blumenthal², Xiaoqing Wang^3,4, and Martin Uecker²

¹University Medical Center Göttingen, Göttingen, Germany, ²Institute for Biomedical Imaging, TU Graz, Graz, Austria, ³Athinoula A. Martinos Center for Biomedical Imaging, Massachusetts General Hospital, Charlestown, MA, United States, ⁴Department of Radiology, Harvard Medical School, Boston, MA, United States

Synopsis

Keywords: Quantitative Imaging, MyocardiumLinear subspace-based models are a powerful method for reconstruction in quantitative magnetic resonance imaging (qMRI). Compared to nonlinear model-based reconstructions, they are computationally more efficient and avoid partial volume effects. Both methods have not yet been compared with respect to myocardial T₁ mapping using single-shot inversion-recovery radial FLASH. This work quantitatively compares the two methods for different regularization parameters. Reconstruction quality and T₁ maps of both methods are comparable.

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