Fig. 6From: Detection limit of 89Zr-labeled T cells for cellular tracking: an in vitro imaging approach using clinical PET/CT and PET/MRIDetection probability of 89Zr-labeled cell suspensions at different background levels for a PET/CT and b PET/MRI. μw, μb: mean radioactivity concentration in 89Zr-containing wells and the background respectivelyBack to article page