Patent ID: 8460636

Claim:
A method for measuring glucose in a living body, said method comprising administering to a living body a glucose-responsive MRI probe comprising a gadolinium complex compound represented by the following Formula (1) or (2): wherein in Formulae (1) and (2), R 1 and R 2 are independently a group represented by the following Formulae (6) or (7); two of R 3 , R 4 , R 5 and R 6 are —OH and the other two of them are independently a group represented by said Formulae (6) or (7): wherein in Formulae (6) and (7), X is an alkylene group (wherein one or more carbon atoms constituting the alkylene chain may be an oxygen atom(s), nitrogen atom(s), sulfur atom(s), silicon atom(s), phosphorus atom(s) or carbonyl group(s)) imaging the living body with MRI apparatus; determining a longitudinal relaxation time for the glucose-responsive MRI probe complexed with glucose, thereby providing an index for measuring glucose in the living body.