Magnetic resonance fingerprinting (MRF) seeks to acquire MRI parameter maps at shorter overall scan duration than achievable through separate image acquisitions. This work demonstrates multi-slice MRF at 3T for T1, T2, and proton-density mapping of a healthy human knee at a high in-plane spatial resolution (0.7x0.7mm$$$^2$$$) with an eight-channel transmit/receive coil at 3T. The spiral trajectories enabled quantification of tissues with ultrashort echo-times, such as trabecular bone.
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