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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