Research Article

Influence of Molecular Mobility on Contrast Efficiency of Branched Polyethylene Glycol Contrast Agent

Table 2

Relaxivity of the synthesized PEG-Gd with different structures compared to commercial contrast agents.

Productr1r2r2/r1

8-arm (4.1)10.7711.201.04
8-arm (3.7)9.9711.271.13
8-arm (2.6)9.2211.221.22
8-arm (1.8)8.429.911.18
4-arm (2.0)3.093.921.27
Dendron (0.7)2.876.142.14
Linear (0.7)2.424.721.95
Magnescope3.383.541.05
ProHance3.714.191.13