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. 2010 Dec 20;38(1):245–255. doi: 10.1118/1.3525840

Table 3.

Quantification of hydroxyapatite and iodine where the calibration was either obtained from the 14 cm calibration phantom or from a linear fit through four calibration phantoms. The known concentrations of HA and iodine were 250 and 12 mg∕ml, respectively.

Diameter (cm) Calibration from 14 cm diameter Calibration from linear fits
HA (mg∕ml) Error (%) Iodine (mg∕ml Error (%) HA (mg∕ml) Error (%) Iodine (mg∕ml Error (%)
8 270 8.00 9.67 19.43 244 2.37 11.34 5.48
10 259 3.61 10.90 9.18 248 0.79 12.85 7.10
12 244 2.30 11.22 6.52 242 3.24 12.24 2.01
14 246 1.71 11.83 1.43 244 2.33 11.76 1.98
16 234 6.50 11.99 0.05 243 2.62 12.22 1.85
18 232 7.34 12.35 2.92 249 0.27 11.74 2.18
20 229 8.58 12.44 3.63 252 0.62 11.73 2.29
Average error 5.44   6.17   1.75   3.27