TABLE 1

Scatter Count and Percentage Scatter Contribution at Different Distances in y Direction from Centered 0.925-MBq Capsule

0.925 MBq1.85 MBq
ROIAbove centerBelow centerAbove centerBelow center
Center4,327 (100%)4,327 (100%)6,666 (100%)6,666 (100%)
2 cm60 (1.38%)116 (2.6%)595 (8.9%)588 (7.1%)
4 cm46 (1%)53 (1.22%)294 (4.4%)129 (1.9%)
6 cm40 (1%)42 (1%)113 (1.6%)64 (0.9%)
8 cm38 (1%)19 (0.4%)32 (0.4%)10 (0.1%)
  • ROI = region of interest.