Fixation d'un anticorps monoclonal anti-fibrine marqué à l'indium111 sur les végétations d'endocardite: évaluation sur le modèle d'endocardite du lapin.

: The uptake of a 111In labelled antifibrin antibody was studied in left ventricle endocarditis on a rabbit model. The immunospecificity of the antibody for the cardiac vegetations is favorable, exhibiting an uptake at least 4 times that of blood, or myocardium. A planar scintigraphy of the opened left ventricle showed a radionuclide imaging of vegetations, according to anatomical lesions. The use of antifibrin monoclonal antibodies could prove helpful to improve the specificity of valvular lesions visualized by echocardiography, or to detect the small vegetations at the early stage of acute endocarditis.