Table 3.

The image contrasts and signal-to-noise ratios calculated for the cold spheres before and after applying the scatter correction

	Noncorrection		Corrected		Primary
	Contrast	SNR	Contrast	SNR	Contrast	SNR
Sphere 1	71.88	23.00	64.52	21.66	85.57	23.14
Sphere 2	60.80	19.44	53.82	18.07	73.80	19.95
Sphere 3	43.44	13.89	39.23	13.17	51.29	13.87
Sphere 4	23.09	7.38	20.60	6.91	27.74	7.50
Sphere 5	6.40	2.05	4.72	1.58	9.53	2.58

SNR: Signal-to-noise ratio