TABLE 3.

Contrast to noise ratio.

Contrast to noise ratio (higher is better)
	FDK	MKB	MCMKB
Ideal	4.2	6.9	13.6
Constant Velocity 9.2 s	2.3 ± 0.37	11.9 ± 3.2	13.1 ± 3.5
Constant Velocity 60 s	2.9 ± 0.4	9.9 ± 1.6	12.6 ± 1.7
Constant Velocity 120 s	3.6 ± 0.3	10.2 ± 1.8	16.0 ± 2.7
Constant Velocity 240 s	3.7 ± 0.4	11.2 ± 2.4	16.7 ± 2.2
Variable Gap 20°	4.0	7.2	16.8
Variable Gap 30°	4.2	6.7	11.3
Variable Gap 40°	3.7	5.6	13.7
Static Gap 20°	3.5	6.0	17.4
Static Gap 30°	3.0	4.1	11.0
Static Gap 40°	3.5	3.3	6.8
ADAPT Patient Mean	4.0 ± 0.3	6.2 ± 1.2	12.4 ± 2.0