PET/CT Scanning for the Follow-up of Antibiotic Treatment of Infectious Osteoarthritis in the Diabetic Foot

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