Contras agent having an imaging agent coupled to viable granulocytes for use in magnetic resonance imaging of abscess and a method of preparing and using same
First Claim
Patent Images
1. A method of preparing and using contrast agent in magnetic resonance imaging abscesses in a patient comprising the steps of:
- mixing a specific number of viable granulocytes with an aqueous solution of a metallic imaging agent in which said imaging agent binds to and is subsequently incorporated into the granulocytes incubating said aqueous solution to encapsulate said imaging agent in said granulocytes to form labeled granulocytes;
separating said labeled granulocytes from said solution;
suspending said labeled granulocytes in an intravascularly administerable carrier to form said contrast agent;
administering a diagnostically effective amount of said contrast agent by intravenous infusion to said patient; and
subjecting said patient to examination by magnetic resonance imaging.
1 Assignment
0 Petitions
Accused Products
Abstract
A method and contrast agent for magnetic resonance imaging (MRI) of abscess. Granulocytes are separated from whole blood and incubated with an imaging vehicle such as magnetite. The granulocytes encapsulate the imaging vehicle and are suspended in an intravascularly administrable carrier to form the contrast agent. The contrast agent is highly specific for MRI of abscess.
93 Citations
12 Claims
-
1. A method of preparing and using contrast agent in magnetic resonance imaging abscesses in a patient comprising the steps of:
-
mixing a specific number of viable granulocytes with an aqueous solution of a metallic imaging agent in which said imaging agent binds to and is subsequently incorporated into the granulocytes incubating said aqueous solution to encapsulate said imaging agent in said granulocytes to form labeled granulocytes; separating said labeled granulocytes from said solution; suspending said labeled granulocytes in an intravascularly administerable carrier to form said contrast agent; administering a diagnostically effective amount of said contrast agent by intravenous infusion to said patient; and subjecting said patient to examination by magnetic resonance imaging. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
-
-
10. A contrast reagent for MRI of abscesses, said reagent comprising:
a suspension of labelled granulocytes in an intravascularly adminstrable carrier, said granulocytes binding to and subsequently incorporating within a diagnostically effective amount of an imaging agent, said agent having the formula Fe2 O3.XO where X is one of the group consisting of para-magnetic and ferro-magnetic materials. - View Dependent Claims (11, 12)
Specification