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

Table 1

Region statistics for CT images with and without isotope present.

CT syringe	Mean (HU)	StdDev (HU)	95% CI	SNR	% Diff SNR (%)
H2O	18.6	4.8	9–28	3.88
^99mTc	17.3	4.5	8–26	3.84	1.03