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Abstract #2714

Design and characterization of an RF shield for a 400 MHz birdcage coil in a retrofitted PET camera for preclinical PET-MRI

Nicola Bertolino1, Thy Nguyen1, Dhaval Shah1, Robert Zivadinov1,2, Marcello Alecci3,4,5, and Ferdinand Schweser1,2

1Buffalo Neuroimaging Analysis Center, Department of Neurology, Jacobs School of Medicine and Biomedical Sciences, University at Buffalo, The State University of New York, Buffalo, NY, United States, 2MRI Clinical and Translational Research Center, Jacobs School of Medicine and Biomedical Sciences, University at Buffalo, The State University of New York, Buffalo, NY, United States, 3Department of Life, Health and Environmental Sciences, University of L'Aquila, L'Aquila, Italy, 4Laboratori Nazionali del Gran Sasso, Istituto Nazionale di Fisica Nucleare, Assergi, L'Aquila, Italy, 5Dipartimento di Scienze Fisiche e Chimiche, Istituto SPIN-CNR, Coppito, LAquila, Italy

PET-MRI imaging sets the stage for truly novel imaging approaches, but preclinical hybrid systems, characterized by ultra-high static magnetic field and small bore diameter, are still in the proof-of-concept stage. In this study, we developed an optimized RF coil/shield setup for an ultra-high field compatible prototype PET ring that can be retrofitted to conventional small-animal MRI systems. In particular an original shielding solution was designed and tested with the purpose of maximizing coil efficiency, usable space inside the detector, and PET sensitivity.

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