Free-breathing qRF-MRF with pilot tone respiratory motion navigator for T, T, T*, and off-resonance mapping of the human body at 3 T.

Standard quantitative abdominal MRI techniques are time consuming, require breath-holds, and are susceptible to patient motion artifacts. Magnetic resonance fingerprinting (MRF) is naturally multi-parametric and quantifies multiple tissue properties, including T and T. This work includes T* and off-resonance mapping into a free-breathing MRF framework utilizing a pilot tone navigator.