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Abstract #3951

Investigation of PET Count Rate Reduction During EPI Scan on an MR-PET Hybrid System

Joachim Bernhard Maria Kaffanke1, Christoph Weirich1, Lutz Tellmann1, Karl-Joseph Langen1, Hans Herzog1, N. Jon Shah1,2

1Institute of Neurosciences and Medicine 4, Medical Imaging Physics, Forschungszentrum Jlich GmbH, 52425 Juelich, Germany; 2Faculty of Medicine, Department of Neurology, RWTH Aachen University, 52074 Aachen, Germany

Hybrid MR-PET scanners offer great opportunities for the investigation of scientific questions and clinical diagnoses that are related to metabolism as well as function and structure of the brain. However, since the technology is new and still in development, it is of great importance to investigate how MR and PET systems influence each other in a combined scanner. Here, the effect of switched magnetic field gradients on the PET count rate is demonstrated and investigated.