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US 4,822,594 AGranted
Contrast enhancing agents for magnetic resonance images
OwnerWendell A. Gibbyinventor
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Abstract
A saccharide matrix containing chelating agents. In a preferred embodiment the chelating agents, for example, EDTA or DTPA, bind metals having at least one unpaired electron. Such compositions are useful for enhancing the contrast of Magnetic Resonance images.
Claims12
A chelating agent represented by the formula:
- ##STR3## where m is 1, 2, or 3;
- n is an interger between 1 and 4;
- p can be independently varied and is an integer between 0 and 2;
- and
- X and Y can be --(CH.sub.2).sub.p COOH or X is (CH.sub.2).sub.n and joined to Y;
- at least one saccharide is bound to said chelating agent through an ester linkages of one of said (COOH) groups and (OH) groups of the saccharide.
3 more elements
Dependencies are inferred from the claim text.