Feasibility and Initial Performance of Simultaneous SPECT-CT Imaging Using a Commercial Multi-Modality Preclinical Imaging System

Table 3

Peak-to-valley ratios for each profile drawn through the rod phantom.

4.8 mm and 4.0 mm rods
37 min SPECT	% Diff. of mean	72 min SPECT	% Diff. of mean	SPECT-CT	% Diff. of mean
25.93	0.6	25.75	1.28	26.57	1.88
3.2 mm rods
37 min SPECT	% Diff. of mean	72 min SPECT	% Diff. of mean	SPECT-CT	% Diff. of mean
15.05	7.65	12.58	9.96	14.3	2.31
2.4 mm rods
37 min SPECT	% Diff. of mean	72 min SPECT	% Diff. of mean	SPECT-CT	% Diff. of mean
6.23	19.51	8.65	11.85	8.33	7.65