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. Author manuscript; available in PMC: 2016 Jun 1.
Published in final edited form as: Magn Reson Med. 2014 Jul 7;73(6):2363–2375. doi: 10.1002/mrm.25335

Figure 6.

Figure 6

Top: 1/g factor maps for the 8-channel PET/MR, the 31-channel PET/MR and the 32-channel MR-only array for acceleration factors R in 1D and 2D. Bottom: Corresponding histograms of 1/g factor maps for the three coils in comparison. Compared to the 8-channel PET/MR coil, the 31-channel PET/MR coil shows much higher 1/g factors values at all acceleration stages. Despite the design constraints for PET compatibility, the 31-channel PET-optimized array performs similarly to an MR-only array with an equivalent number of channels.