Magnetization‐prepared spoiled gradient‐echo snapshot imaging for efficient measurement of R₂‐R_1ρ in knee cartilage

Purpose To validate the potential of quantifying R 2 ‐R 1ρ using one pair of signals with T 1ρ preparation and T 2 preparation incorporated to magnetization‐prepared angle‐modulated partitioned k‐space spoiled gradient‐echo snapshots (MAPSS) acquisition and to find an optimal preparation time (T prep ) for in vivo knee MRI. Methods Bloch equation simulations were first performed to assess the accuracy of quantifying R 2 ‐R 1ρ using T 1ρ ‐ and T...