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. Author manuscript; available in PMC: 2012 Mar 19.
Published in final edited form as: Contrast Media Mol Imaging. 2010 Oct 28;6(2):61–68. doi: 10.1002/cmmi.404

Table 1.

T1 values (at 1.3 mg ml−1) and relaxivity of HA–(EDA–DTPA–Gd) of different molecular weight at 25°C, measured at 1.5 and 9.4 T, at which water T1 is 2.5 and 2.8 s

1.5T 9.4T
MW of HA (kDa) 16 74 16 74
T1 values (s) 0.418 0.417 0.490 0.470
Gd content (% weight) 4.5 5.2 4.5 5.2
Gd Concentration (mM) 0.37 0.43 0.37 0.43
Relaxivity [mM(Gd)−1s−1] 5.38 4.65 4.55 4.12