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. Author manuscript; available in PMC: 2010 Jul 21.
Published in final edited form as: Acc Chem Res. 2009 Jul 21;42(7):893–903. doi: 10.1021/ar800245h

Figure 1.

Figure 1

Three important factors that determine the relaxivity of Gd(III)-based MR contrast agents: hydration number (q), the mean residence lifetime of bound water molecules (τm), and the rotational correlation time (τR).