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Fig. 4 | EJNMMI Research

Fig. 4

From: Potential usefulness of 68Ga-citrate PET/CT in detecting infected lower limb prostheses

Fig. 4

Patient (case # 3) with a history of knee prosthesis implantation performed 12 months before imaging. The results of 18F-FDG PET/CT (upper row) and 68Ga-citrate PET/CT (lower row) are presented. ad The green arrows indicate an increased 18F-FDG uptake at both the bone prosthesis interface and the knee synovium. eh A similar pattern of 68Ga-citrate uptake was evident. The imaging results were considered positive, and the case was subsequently confirmed as true positive. d, h In contrast to the femoral portion, there was no increased radiotracer uptake along the bone prosthesis interface of the elongated tibial stem component (indicating no loosening or infection of a specific prosthesis segment, blue arrows)

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