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

Table 5

Derenzo phantom hot rod statistics and SNR.

	Mean; (cts/cc)	StdDev; (cts/cc)	Min; (cts/cc)	Max; (cts/cc)	SNR; (SNR)	SD/Mean; (%)
37 min; SPECT
All rods	3466.9	923.1	2211.4	6619	13.6	26.6
4.8, 4.0 mm	3713.8	940.4	2211.4	6563.4	13.3	25.3
3.2 mm	3480.8	907.9	2211.4	6619	13.7	26.1
2.4 mm	2824.3	468.8	2211.4	4868.5	15.1	16.6
	Mean; (cts/cc)	StdDev; (cts/cc)	Min; (cts/cc)	Max; (cts/cc)	SNR; (SNR)	SD/Mean; (%)
72 min; SPECT
All rods	7011.3	2015.4	2114.6	13220.5	14.8	28.7
4.8, 4.0 mm	7580.2	2022.6	2801.7	13220.5	14.2	26.7
3.2 mm	7062.9	1913.6	2490.6	12987.9	14.8	27.1
2.4 mm	5546.3	1121.5	2573.5	8825.3	14.9	20.2
	Mean; (cts/cc)	StdDev; (cts/cc)	Min; (cts/cc)	Max; (cts/cc)	SNR; (SNR)	SD/Mean; (%)
30 min; SPECT-CT
All rods	2861.7	872.3	787.3	5501.5	14.7	30.5
4.8, 4.0 mm	3128	865.6	946.1	5501.5	14.4	27.7
3.2 mm	2851.6	824.3	869.5	5447.6	14.9	28.9
2.4 mm	2190.5	494.8	787.3	3970.7	16.2	22.6