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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