The study has proven to be infeasible.

The investigators' primary objective is to assess the predictive power of PET/CT scanning in the evolution of infectious osteoarthritis of the diabetic diabetic after antibiotic therapy prescribed by national and international recommendations.

Inclusion Criteria:

• The patient must have given his/her informed and signed consent
• The patient must be insured or beneficiary of a health insurance plan
• Patient has type I or type II diabetes
• Patient consulting in the department of Metabolic and Endocrine Diseases (Caremeau Hospital) or the department of Nutritional Diseases and Diabetology (Grau de Roi Medical Center) at the Nîmes University Hospital
• Patient has infected osteoarthritis of the foot according to the International Working Group on the Diabetic Foot with a probability > 50% (score >= 2).

Exclusion Criteria:

• The patient is participating in another study
• The patient is in an exclusion period determined by a previous study
• The patient is under judicial protection, under tutorship or curatorship
• The patient refuses to sign the consent
• It is impossible to correctly inform the patient
• The patient is pregnant
• The patient is breastfeeding
• Patient has severe sepsis or a stage 4 infection according to the international consensus on the diabetic foot
• Patient has severe renal insufficiency as defined by glomerular filtration rate < 30ml/min/1.73 m^2, calculated according to the MDRD equation, and is not undergoing dialysis
• Patient has a contra-indication for an MRI
• pacemaker
• intracranial clips
• metallic inclusions
• severe claustrophobia