Table 3.

Relative Differences in DQE Estimates between the Three DQE Measurement Methods

Spatial Frequency Range	Samei and Flynn (historical) vs IEC Method	Samei et al (current) vs IEC Method	Dobbins et al vs IEC Method	Samei and Flynn (historical) vs Dobbins et al Method
0.5–2.5 mm−1	−4.3 ± 0.9	− 2.9 ± 0.8	5.7 ± 0.8	−5.2 ± 1.0
0.25–1.25 mm−1	6.5 ± 1.0	7.5 ± 0.8	3.3 ± 1.1	1.5 ± 1.3
1.5–2.5 mm−1	−12.4 ± 1.3	−10.8 ± 1.1	7.1 ± 1.1	−10.0 ± 1.4

Note.—Data are mean relative differences, cited as percentages, ±standard deviations.