highly significantP <0.001
Results The difference in T1ρ and T2* values between NP and AF were highly significant ( P <0.001).
Results The difference in T1ρ and T2* values between NP and AF were highly significant ( P <0.001).
Our results showed a decreasing trend in T1ρ values of both NP and AF with the increase of Pfirrmann grade, and the association between T1ρ values of NP and AF and Pfirrmann grade was significant ( r =−0.69, P <0.001; r =−0.45, P <0.001), which is in agreement with previous reports that T1ρ values of AF decline significantly over disc degeneration [ 9 ] and that T1ρ values of NP are moderately correlated with Pfirrmann grade I–V disks of patients with low back pain [ 6 ].