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Abstract #0404

MRI Compatibility of a High-Resolution Small Animal PET Insert Operating Inside a 7T MRI

Jonathan D. Thiessen 1,2 , Ehsan Shams 3,4 , Greg Stortz 5 , Graham Schellenberg 4 , Daryl Bishop 6 , Muhammad Salman Khan 7 , Piotr Kozlowski 8 , Fabrice Retire 6 , Vesna Sossi 5 , Christopher J. Thompson 9 , and Andrew L. Goertzen 4,10

1 Imaging Program, Lawson Health Research Institute, London, Ontario, Canada, 2 Medical Biophysics, Western University, London, Ontario, Canada, 3 Graduate Program in Biomedical Engineering, University of Manitoba, Winnipeg, Manitoba, Canada, 4 Physics & Astronomy, University of Manitoba, Winnipeg, Manitoba, Canada, 5 Physics & Astronomy, University of British Columbia, Vancouver, British Columbia, Canada, 6 Detector Development Group, TRIUMF, Vancouver, British Columbia, Canada, 7 Electrical & Computer Engineering, University of Manitoba, Winnipeg, Manitoba, Canada, 8 Radiology, University of British Columbia, Vancouver, British Columbia, Canada, 9 McConnell Brain Imaging Centre, Montreal Neurological Institute, Montral, Qubec, Canada, 10 Radiology, University of Manitoba, Winnipeg, Manitoba, Canada

We are building an MRI compatible, high-resolution small animal positron emission tomography (PET) insert. The PET insert is designed to achieve 1 mm spatial resolution in the center of its field-of-view and fit within the 114 mm inner diameter of a BGA-12S gradient system installed in a Bruker 7T MRI. Good PET detector and MRI performance was demonstrated with the PET insert operating inside the MRI. A data acquisition system capable of acquiring energy data from all 16 detector modules is currently being developed on the OpenPET firmware platform, with the first PET/MR images anticipated in early 2015.

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