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Table 4 Mean quantification error for 60% to 90% ROI diameter of the calibration phantom physical diameter

From: Quantitative capabilities of four state-of-the-art SPECT-CT cameras

SPECT-CT systems Quantification error (%)
Contrast NEMA S
XL L M XL L M XL L M
Brightview −9.29 −4.34 −8.08 −6.32 −4.05 −6.32 −12.08 −14.15 −10.91
Discovery 0.72 7.48 12.27 −5.12 1.25 5.76 −16.15 −10.52 −6.54
Infinia 4.11 −13.95 −7.64 1.17 −16.38 −10.25 −5.66 −22.02 −16.31
Symbia 0.82 9.22 5.62 −3.83 4.18 0.76 −16.45 −9.49 −12.47
  1. Results are presented for the four SPECT-CT systems, the three calibration phantoms (XL, L, and M), and the three test phantoms (Contrast, NEMA, and S).