Table 6.

Results of the signal-to-background (S2B) evaluation of the image reconstructions of the rabbit-sized phantom.

	Trig	Normalized	S2B (with TOF)	S2B (no TOF)	TOF change
Un-tilted	3	Decays	2.41	2.25	7.10%
	1	All	2.69	2.23	20.33%
	3	Counts	2.37	2.21	6.85%
	3	All	2.41	2.25	7.15%
Tilted	3	All	2.31	2.15	7.68%
	1	Decays	2.59	2.13	21.82%
	3	Counts	2.31	2.15	7.53%
	1	All	2.61	2.14	22.14%

Note: the signal-to-background values are reported for each of the reconstructions shown in figures 11 and 12. In the last column, the relative change of the signal-to-background value using the TOF information compared to the non-TOF case is reported.