Fractional uptake | Duration of constraint (d) | ||||||
---|---|---|---|---|---|---|---|
1 | 2 | 3 | 4 | 5 | 6 | 7 | |
0.00 | 0.003 | 0 | 0 | 0 | 0 | 0 | 0 |
0.05 | 0.027 | 0.023 | 0.020 | 0.018 | 0.017 | 0.015 | 0.014 |
0.10 | 0.051 | 0.045 | 0.040 | 0.037 | 0.033 | 0.030 | 0.028 |
0.15 | 0.076 | 0.067 | 0.061 | 0.055 | 0.050 | 0.046 | 0.041 |
0.20 | 0.100 | 0.089 | 0.081 | 0.073 | 0.067 | 0.061 | 0.055 |
0.25 | 0.124 | 0.111 | 0.101 | 0.092 | 0.083 | 0.076 | 0.069 |
0.30 | 0.149 | 0.133 | 0.121 | 0.110 | 0.100 | 0.091 | 0.083 |
0.35 | 0.173 | 0.156 | 0.141 | 0.129 | 0.117 | 0.106 | 0.097 |
0.40 | 0.197 | 0.178 | 0.162 | 0.147 | 0.134 | 0.121 | 0.110 |
0.45 | 0.221 | 0.200 | 0.182 | 0.165 | 0.150 | 0.137 | 0.124 |
0.50 | 0.246 | 0.222 | 0.202 | 0.184 | 0.167 | 0.152 | 0.138 |
0.55 | 0.270 | 0.244 | 0.222 | 0.202 | 0.184 | 0.167 | 0.152 |
0.60 | 0.294 | 0.267 | 0.242 | 0.220 | 0.200 | 0.182 | 0.166 |
0.65 | 0.318 | 0.289 | 0.263 | 0.239 | 0.217 | 0.197 | 0.180 |
0.70 | 0.343 | 0.311 | 0.283 | 0.257 | 0.234 | 0.213 | 0.193 |
0.75 | 0.367 | 0.333 | 0.303 | 0.275 | 0.250 | 0.228 | 0.207 |
0.80 | 0.391 | 0.355 | 0.323 | 0.294 | 0.267 | 0.243 | 0.221 |
0.85 | 0.416 | 0.378 | 0.343 | 0.312 | 0.284 | 0.258 | 0.235 |
0.90 | 0.440 | 0.400 | 0.363 | 0.331 | 0.301 | 0.273 | 0.249 |
0.95 | 0.464 | 0.422 | 0.384 | 0.349 | 0.317 | 0.289 | 0.262 |
1.00 | 0.488 | 0.444 | 0.404 | 0.367 | 0.334 | 0.304 | 0.276 |
Values are in mSv/mCi and are derived from the equation Euc = [0.537Ue−0.095C + 0.0236(1 − U)e−2.08C], where Euc = exposure during unconstrained period, U = fractional uptake of 131I, and C = period of constrained activity. 1 mCi = 37 MBq.