Composition of positive and negative contrast agents for electro

Details Composition of positive and negative contrast agents for electro Composition of positive and negative contrast agents for electro

1993-03-22

1994-05-24

Hollinden, Gary E.

Drug, bio-affecting and body treating compositions

In vivo diagnosis or in vivo testing

Magnetic imaging agent

436173, 436806, 1286534, 324307, 324308, 514315, 514424, 514836, A61B 5055, A61K 31445, A61K 3140, G01V 300

Patent

active

053146816

ABSTRACT:
The invention relates to a modification of electron spin resonance enhanced magnetic resonance imaging (ESREMRI) in which two magnetically responsive materials (contrast agents) are introduced into the sample being investigated, one contrast agent serving as an ESREMRI free induction decay signal enhancing agent and the other as enhancement suppressing agent. In this way, image contrast may be enhanced further for regions in which the suppressing agent distributes poorly or not at all or which the suppressing agent reaches at a later time than the enhancing agent.

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