Patent ID: 7160535

Claim:
A compound having the following chemical structure: wherein M is 99m Tc, 51 Cr, 67 Ga, 68 Ga, 111 In, 168 Yb, 140 La, 90 Y, 88 Y, 86 Y, 153 SM, 166 HO, 165 Dy, 64 Cu, 67 Cu, 97 Ru, 103 Ru, 186 Re, 188 Re, 203 Pb, 211 Bi, 212 Bi, 213 Bi, 214 Bi, 215 Bi, 177 Lu, chromium (III), manganese (II), iron (II), iron (IL), cobalt (II), nickle (II), copper (II), praseodymium (III), neodymium (III), samarium (III), gadolinium (III), terbium, (III), dysprosium (III), holmium (III), erbium (III) or ytterbium (III); and X is CH 2 , an amino acid, a peptide, or an antibody.