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Abstract #5136

Whole body FDG PET/MRI for assessment of facet joint osteoarthritis: Direct comparison of FDG uptake with MRI and CT features

Munenobu Nogami1,2, Shinsuke Shimoyama2, Yuichi Wakabayashi2, Utaru Tanaka2, Yoshiaki Watanabe3, Akihito Ohnishi2, Tatsuya Nishii2, Yoshiko Ueno2, Atsushi K Kono3, Kazuhiro Kubo2, Satoru Takahashi2, and Kazuro Sugimura2

1Department of Radiology, Hyogo Cancer Center, Akashi, Japan, 2Department of Radiology, Kobe University Graduate School of Medicine, Kobe, Japan, 3Department of Radiology, National Cerebral and Cardiovascular Center, Suita, Japan

Hybrid PET/MRI scanner is an emerging modality and utilized not only for oncological or neurological purposes but also for assessment of musculoskeletal disease. Simultaneous acquisition of PET and MRI enables precise anatomical localization of PET tracers and further understanding of mechanism of the tracer uptake by using MRI information. Our hypothesis was that PET/MRI can reveal the pathophysiological mechanism of facet joint osteoarthritis by the simultaneous whole body imaging. The results showed MRI features on PET/MR significantly correlated with FDG uptake in the facet joint osteoarthritis and may be superior to CT based evaluation.

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