TABLE 2

Time-Integrated Activity Factor (h) to Convert Single Measurement (Bq/mL) into Estimated Time-Integrated Activity Concentration (Bq × h/mL, disintegrations per unit volume)

Image time (h)TumorParotid glandSubmandibular glandKidneyLiverSpleen
12129 ± 22%65 ± 13%66 ± 14%62 ± 12%76 ± 24%80 ± 25%
18126 ± 21%71 ± 11%71 ± 13%74 ± 12%91 ± 22%100 ± 24%
24127 ± 19%77 ± 10%77 ± 12%82 ± 11%99 ± 19%110 ± 21%
36133 ± 17%91 ± 7%91 ± 9%99 ± 9%115 ± 15%127 ± 16%
48140 ± 14%108 ± 4%107 ± 6%119 ± 8%131 ± 11%145 ± 12%
60148 ± 12%129 ± 5%127 ± 5%144 ± 8%151 ± 9%167 ± 10%
72156 ± 9%154 ± 8%151 ± 6%173 ± 10%175 ± 8%193 ± 11%
96176 ± 5%222 ± 17%217 ± 14%254 ± 16%235 ± 12%262 ± 19%
120198 ± 4%328 ± 28%314 ± 23%375 ± 22%321 ± 20%361 ± 28%
  • For normalized image time and tissue-of-interest, mean error of residence time as percentage based on modeled cohort is reported.