Patent ID: 8765977

Claim:
A method of diagnostic imaging comprising: (a) administering a medical formulation to a subject, the formulation comprising a contrast enhancement agent having structure I and salts thereof wherein R 1 is independently at each occurrence a hydroxy group, a C 1 -C 3 hydroxyalkyl group, or a C 1 -C 3 alkyl group, and b is 0-4; R 2 -R 7 are independently at each occurrence hydrogen, a C 1 -C 3 hydroxyalkyl group, or a C 1 -C 3 alkyl group, with the proviso that at least one of R 1 -R 7 is a hydroxy group or a C 1 -C 3 hydroxyalkyl group; and wherein Q is one or more charge balancing counterions; and one or more pharmaceutically acceptable carriers and excipients; and (b) subjecting the subject to a diagnostic imaging technique.