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Scand J Infect Dis. 2013 Jul;45(7):570-4. doi: 10.3109/00365548.2013.767472. Epub 2013 Feb 21.

Infectious endocarditis detected by PET/CT in a patient with a prosthetic knee infection: case report and review of the literature.

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URMITE, Université d'Aix-Marseille, Marseille, France.


We report a case illustrating the potential use of 18F-fluorodeoxyglucose positron emission tomography combined with computed tomography (PET/CT) for the diagnosis of infective endocarditis (IE) in an 84-y-old woman who had a history of chronic left knee osteitis and a mitral cardiac valve bioprosthesis replacement and a pacemaker. She developed a polymicrobial knee infection 15 days after her total knee replacement. Transoesophageal echocardiography showed a new mitral regurgitation, but no vegetation or abscess. PET/CT showed hypermetabolic hyperactivity around the mitral cardiac valve prosthesis and the intracardiac pacemaker leads. We found 17 case reports and 2 case series of IE in which PET/CT showed encouraging results for the detection of IE. PET/CT may be used in patients with a suspicion of IE who do not have echocardiographic evidence of IE. It may also be useful for identifying the portal of entry of an infection and for identifying secondary foci (mycotic aneurysm).

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