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Table 4 Results of uniform phantom study

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 Acquisition Evaluation indicator No correction Corrected without DR Corrected using DR DR/no DR
Tc-99m Single ROI value 260.5 ± 12.9 183.7 ± 17.8 204.2 ± 19.4 1.11
Dual ROI value 342.3 ± 16.9 188.2 ± 16.6 214.9 ± 18.6 1.14
Dual vs. single PD (%) 27.1 ± 3.2 4.3 ± 3.2 5.7 ± 4.0 1.32
I-123 Dual ROI value 111.2 ± 8.1 58.2 ± 8.0 75.3 ± 9.4 1.29
  1. Values are mean ± standard deviation
  2. PD percentage difference for each ROI value between single and dual acquisitions