PMC8086694_01
The 18-fluorine-fluorodeoxyglucose positron-emission-tomography/computed tomography (18F-FDG PET/CT) images obtained from the patient showing changes in metabolic activity around the aortic bioprosthesis; A. After initial antimicrobial therapy; B. Before subcutaneous implantable cardioverter-defibrillator implantation; C. During the second hospitalization.
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This showed a non-homogenous increased uptake around the aortic bioprosthesis (Fig. 1A) with maximal standardized uptake values (SUVmax) up to 5.0. Another 18F-FDG PET/CT study was performed, which showed decreased metabolic activity around the bioprosthetic valve, but without complete resolution, with SUVmax 3.0, SUVr(liver) 0.98 and SUVr(MBPS) 1.37 (Fig. 1B). Fig. 1). The patient was referred for another 18F-FDG PET/CT examination which showed moderately increased metabolic activity around the aortic valve with SUVmax 4.1, SUVr(liver) 1.18, and SUVr(MBPS) 1.56 (Fig. 1C).