alexa PET and SPECT in osteomyelitis and prosthetic bone and joint infections: a systematic review.
Oncology

Oncology

Journal of Nuclear Medicine & Radiation Therapy

Author(s): van der Bruggen W, BleekerRovers CP, Boerman OC, Gotthardt M, Oyen WJ

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Abstract OBJECTIVE: To review the literature on diagnostic accuracy and clinical value of single-photon emission computed tomography (SPECT) and positron emission tomography (PET) for imaging of bone and joint infections. METHODS: The PubMed/MEDLINE and Embase (OvidSP) literature databases were systematically searched for publications on SPECT and PET on osteomyelitis and prosthetic bone and joint infections using specific guidelines with MeSH-terms, truncations, and completion using cross-references. RESULTS: In 44 original articles (15 for SPECT and 29 for (18)F-fluorodeoxyglucose [FDG]-PET) on osteomyelitis and prosthetic bone and joint infection, 1634 patients were included (580 patients SPECT, 1054 patients FDG-PET). Level of evidence (Oxford criteria) was 2-3b. For SPECT, the highest diagnostic accuracy of 95\% for diagnosis of bone and joint infections is achieved with combined (111)In-WBC and (99m)Tc-sulfur colloid. Acceptable diagnostic accuracy was also obtained with (99m)Tc-WBC or (111)In-WBC combined with (99m)Tc-methylene diphosphonate ((99m)Tc-MDP). FDG-PET is useful for diagnosis of osteomyelitis with a sensitivity and specificity generally over 95\%. In patients with orthopedic implant infections, sensitivity varies widely from 28\% to 91\% and specificity from 9\% to 97\%. This variation in FDG-PET performance in orthopedic implant infections depends largely on the (use of different) criteria to diagnose infection. Determination of the best criteria is still a matter of debate. CONCLUSIONS: SPECT/computed tomography (CT) with (111)In-WBC combined with (99m)Tc-MDP or (99m)Tc-sulfur colloid seems to be the best imaging technique for diagnosis of bone and joint infections. FDG-PET is also useful for diagnosis of osteomyelitis with improved spatial resolution over SPECT imaging, allowing more accurate localization. Localization can be further improved by adding CT. Diagnosis of orthopedic implant infections with FDG-PET depends strongly on the localization of the implant and the criteria used to diagnose infection. Confirmation of well defined criteria to diagnose infection on FDG-PET in patients with metallic implants is thus of paramount importance for optimal diagnosis. This article was published in Semin Nucl Med and referenced in Journal of Nuclear Medicine & Radiation Therapy

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