Fig 3. Image quality of ⁶⁸Ga-HBED-CC-PSMA PET/MRI of a patient with recurrent PCa in an ilical lymph node.

Images were acquired at 3 h p.i.. Left panel: PET/MR fusion image, right panel: PET image of the PET/MR hybrid imaging system. Acquisition times were a) 1 min, b) 2 min, c) 3 min, d) 4 min, e) 6 min, f) 8 min, and g) 10 min. PET image quality rises with increasing acquisition times and reaches a plateau at an acquisition time of 4 min. The halo artifact first occurs at image acquisition times of 4 min.