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Table 3 Sphere diameter measurements

From: 3D printing 18F radioactive phantoms for PET imaging

Sphere diameter (mm) 2 3 4 5 6 8 10 12 15 20
Diameter measurement mean (mm) 1.93 2.89 3.87 4.94 5.96 7.90 9.97 11.92 14.91 19.82
Absolute difference (mm) −0.074 −0.113 −0.129 −0.063 −0.037 −0.097 −0.033 −0.083 −0.095 −0.178
Percentage difference (%) −3.7 −3.8 −3.2 −1.3 −0.6 −1.2 −0.3 −0.7 −0.6 −0.9