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Abstract #1385

Minimized PET Attenuation in PET-MRI Knee Scanning with Flexible, Screen-Printed MR Coils

Feliks Kogan1, Lauren E Watkins1, Jacob Thoenen1, Peder Larson2, and Garry E Gold1

1Radiology, Stanford University, Stanford, CA, United States, 2Department of Radiology and Biomedical Imaging, University of California - San Francisco, San Francisco, CA, United States

Simultaneous PET-MRI imaging is an exciting new technology for quantitative assessment of whole-joint disease in osteoarthritis (OA). Attenuation correction (AC) for MRI hardware is a challenge for PET quantification in hybrid PET-MRI systems. In this work, we tested a new, lightweight, screen-printed, flexible, 12-channel phased-array MR coil which reduces PET photon attenuation from MR hardware in a PET phantom to below 3%, potentially removing the need to correct for it. Further, the close proximity of coil elements to the knee show promise for high SNR MRI knee imaging.

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