多参数成像 T1 Contrast T2 Contrast Proton Density TE=14 ms TE=100 ms Te 14 ms TR 400 ms TR =1500 ms TR=1500 ms 多参数成像 T1 Contrast TE = 14 ms TR = 400 ms T2 Contrast TE = 100 ms TR = 1500 ms Proton Density TE = 14 ms TR = 1500 ms