Study Assessing Hybrid SPECT-CT With Labeled Leukocytes for Diagnosis of Vascular Prosthesis Infections

Inclusion Criteria: * patient of more than 18 years old * Patient with a subdiaphragmatic vascular prosthesis * Vascular prosthesis infection suspected with clinical (flow from the scare and/or local pain and/or erythema and/or persistent fever and/or bacteraemia) and/or biological (inflammatory syndrome : elevated C-reactive protein and/or erythrocyte sedimentation rate (ESR) and/or white blood cells increased) infection signs * Patient willing to participate with a signed informed consent * Patient covered by a healthcare insurance Exclusion Criteria: * Pregnant women or of childbearing age without effective contraception * Prosthesis limited to a bare stent. * Patient who has been committed to an institution by legal or regulatory order * Contraindications for labeled leukocytes scintigraphy realization : * Restlessness, inability to keep still lie at least 1 hour * Claustrophobia * Poor compliance predictable or impaired general condition making it impossible to carry out the examination * Refusal to participate in the study