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. 2022 Apr 25;39(2):398–404. [Article in Chinese] doi: 10.7507/1001-5515.202109033

表 1. T1 and T2 relaxation efficiency of samples (r1 and r2 units: Fe mmol−1·L· s−1).

样品的T1、T2弛豫效能（r1、r2单位：Fe mmol−1·L· s−1）

样品 0.5 T 1.41 T 3.0 T
r 1 r 2 r2/r1 r 1 r 2 r2/r1 r 1 r 2 r2/r1
柠檬酸铁 0.91 2.16 2.37 0.73 2.80 3.83 0.84 4.33 5.15
PAsp-DAFe/PEG 2.12 2.46 1.16 2.22 2.81 1.27 2.70 2.99 1.11