Recent Advances in Molecular Magnetic Resonance Imaging of Liver Fibrosis

Figure 5

Collagen-targeting contrast agent: L-amino acids are designated by letter, except where otherwise noted; Gd chelates are appended through the N terminus, through branched Lys-Gly residues at the N terminus, and through a Lys side chain within the cyclic portion of the peptide. (Reprinted with permission from [52].)