DWI was performed with motion probing gradient ( MPG) along the three orthogonal axes ( b value, 700 s/mm2; matrix, 128 x72; thickness, 4mm).

• 32nunZ/。 ，模型一组见AnC值Hl后下降，在0一6h、20一解h、科一4sh、65一72h分别为767 .；35土55