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Abstract #3079

MR Performance Evaluation of a PET/MR With SiPM Based Time of Flight PET Detectors

Mohammad Mehdi Khalighi 1 , Gaspar Delso 2 , Sri-Harsha Maramraju 3 , Greg Zaharchuk 4 , and Gary Glover 4

1 Applied Science Lab, GE Healthcare, Menlo Park, CA, United States, 2 Applied Science Lab, GE Healthcare, Zurich, Switzerland, 3 PET/MR Engineering, GE Healthcare, Waukesha, WI, United States, 4 Radiology Dep., Stanford University, Stanford, CA, United States

The MR performance of an investigational hybrid PET/MR system is compared to a comparable wide-bore MR machine. We show that the MR performance is not significantly compromised after PET ring insertion. It is also shown that PET acquisition itself has a very small effect (3% SNR drop). Because of the smaller diameter, the PET/MR body coil SNR is higher and demonstrates 30% increased peak B1+. The only significant tradeoff between PET/MR and a wide-bore MR is the bore size (60cm vs. 70cm).

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