activity of matrix metalloproteinase-2 (MMP-2) is described. The assessment relies on a
procedure that involves the ratio R 2p/R1p between the transverse and longitudinal
paramagnetic contributions to the water proton relaxation rate. This method is independent
of the total gadolinium concentration.© 2013 WILEY-VCH Verlag GmbH & Co. KGaA,
Weinheim.