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Abstract #4461

PET/MRI molecular imaging in sports medicine: Assessment of ACL graft viability with combined  18F-FDG and 3T MR imaging

Katherine Binzel1, Robert Magnussen2, Christopher Kaeding2, David C Flanigan2, Wenbo Wei1, Melanie U Knopp3, and Michael V Knopp1

1Radiology, The Ohio State University, Columbus, OH, United States, 2Sports Medicine, The Ohio State University, Columbus, OH, United States, 3Sports Medicine, Pepperdine University, Malibu, CA, United States

Evaluation of ACL graft healing by combined PET/MR imaging is readily feasible but has limited quantitative accuracy with use of conventional PET systems. The application of next generation digital photon counting in PET improves the quantitative accuracy and precision of assessment of graft metabolic activity. This advanced imaging modality also holds potential for ultra-low dose PET imaging, enhancing the clinical utility of such a combined imaging approach for detailed assessment of ACL graft viability after reconstructive surgery.

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