Preparation and in vitro evaluation of a novel amphiphilic GdPCTA-[12] derivative; a micellar MRI contrast agent
作者:Ragnar Hovland、Christian Gløgård、Arne J. Aasen、Jo Klaveness
DOI:10.1039/b211039c
日期:2003.2.11
concentration dependent T1-relaxivity (r1) of the system has been described. The maximum T1-relaxivity, 29.2 s-1 mM-1 (20 MHz, 25 degrees C), was higher than for previously described micellar MRIcontrastagents. This high T1-relaxivity is a consequence of the favourable water residence time (tau M) and the fact that the complex is heptadentate allowing two water molecules to coordinate to the gadolinium