Fig. 2

Recovery coefficient values relative to sphere size determined from NEMA NU2-2007 body phantom data acquired in accordance with EARL guidelines for Image Quality QC standard operating procedures. a SUVmean of EARL2 and EARL2F6 data. b SUVmax of EARL2 and EARL2F6 data. Average measured EARL1 SUV data—solid black line, average measured EARL2F6 SUV data—solid red line current, standard deviation from average measured EARL1 SUV data—black dash dot dot line; standard deviation from average measured EARL2F6 SUV data—red dash dot dot line; EARL standard—bold black lines, prospective future EARL standard—bold red lines