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EJNMMI Physics

Table 5 Results for six-compartment phantom images

From: Simultaneous Tc-99m and I-123 dual-radionuclide imaging with a solid-state detector-based brain-SPECT system and energy-based scatter correction

Radionuclide

Tc-99m

I-123

Correction

None

FiveEW-woDR

FiveEW

None

FiveEW-woDR

FiveEW

Relative PD (%)

27.3 ± 20.4

7.9 ± 6.6

8.4 ± 7.3

4.5 ± 3.7

2.7 ± 2.0

2.4 ± 1.8

PD (%)

28.3 ± 16.1

15.6 ± 10.2

14.4 ± 11.0

19.3 ± 4.9

12.8 ± 3.3

2.3 ± 1.8

RS (%)

20.1 ± 12.4

1.3 ± 1.4

1.3 ± 1.4

3.4 ± 2.5

2.1 ± 2.1

1.3 ± 1.6

  1. Values are mean ± standard deviation
  2. PD percentage difference for each ROI value between hot ROI values and injected activity, RS residual scatter defined as mean cold ROI value divided by mean hot ROI value
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