Fig. 6

Motion correction strategies available for Cartesian 3-dimensional T1ρ mapping of the heart. Free-breathing 3-dimensional myocardial T1ρ mapping can be performed by using diaphragmatic navigation as proposed by Iyer et al. [55] or using image-based navigation as proposed by Qi et al. [52]. While both techniques enable motion corrected T1ρ mapping of the heart, the use of iNavs allows for 100% scan efficiency (i.e., no data rejection) which ultimately leads to faster scan times