Article Figures & Data
Figures
- FIGURE 1.
Patient’s and researcher’s positions (cross and dot, respectively) in both therapeutic rooms. Lead screen used to shield radiation is represented as striped line and was positioned before measurement of dose rate, reducing influence of other patients.
- FIGURE 2.
Variables considered and their influence on dose rate. Coefficients and SDs are presented, as well as results of t test and significance.
Tables
Variable n % Effective half-life (h) Total length of stay (h) Mean SD Mean SD Sex Female 149 73.04 12.49 3.24 14.28 4.92 Male 55 26.96 12.94 3.41 17.80 6.17 Age (y) <20 1 0.49 13.45 0.00 15.11 0.00 20–39 77 37.75 12.86 3.31 15.05 5.26 40–64 114 55.88 12.34 3.27 15.46 5.84 ≥65 12 5.88 13.52 3.35 14.22 3.82 BMI Underweight 2 0.98 11.74 1.43 13.43 1.58 Normal 63 30.88 12.12 3.18 15.11 15.11 Overweight 98 48.04 12.71 3.55 15.56 15.56 Obese 41 20.10 13.19 2.75 14.72 14.72 Activity (MBq) 3,700 138 67.65 12.11 2.66 11.99 1.63 5,550 51 25.00 13.66 4.03 19.91 1.82 7,400 13 6.37 13.77 4.96 28.19 1.34 9,250 2 0.98 13.49 0.36 35.60 1.89 rhTSH use No 123 60.78 13.57 3.58 16.73 5.30 Yes 80 39.22 11.13 2.03 12.92 5.00 Ingested-liquid volume (L) 0–2 11 5.39 14.42 2.01 14.11 2.89 2–4 67 32.84 13.15 3.32 16.21 6.43 4–6 77 37.75 12.01 3.43 14.79 5.11 6–8 37 18.14 11.86 2.83 14.46 5.21 8–10 8 3.92 13.53 2.44 16.03 5.04 >10 3 1.47 13.45 2.40 14.32 3.72 Total/mean time 204 100.00 12.61 3.28 15.23 5.50 Variable Coefficient SD t test P Conclusion Female Age 0.039 0.051 0.760 0.448 Not significant Weight −0.146 0.038 −3.802 0.000 Significant Height 12.441 10.941 1.137 0.256 Not significant Activity 0.326 0.025 12.802 0.000 Significant rhTSH −4.041 1.142 −3.539 0.000 Significant Ingested-liquid volume −2.271 0.404 −5.619 0.000 Significant Time −1.446 0.100 −14.393 0.000 Significant Male Age 0.157 0..135 1.164 0.247 Not significant Weight −0.154 0.054 −2.838 0.005 Significant Height 19.417 21.228 0.915 0.362 Not significant Activity 0.328 0.055 6.012 0.000 Significant rhTSH −9.341 3.907 −2.391 0.019 Significant Ingested-liquid volume −0.667 1.164 −0.573 0.568 Not significant Time −2.428 0.278 −8.727 0.000 Significant Normal BMI Age −0.028 0.081 −0.349 0.728 Not significant Sex 3.548 2.208 1.607 0.110 Not significant Activity 0.360 0.040 9.064 0.000 Significant rhTSH −5.330 1.643 −3.243 0.001 Significant Ingested-liquid volume −2.574 0.818 −3.148 0.002 Significant Time −1.597 0.177 −9.010 0.000 Significant Overweight Age 0.092 0.080 1.149 0.252 Not significant Sex 4.037 2.298 1.757 0.081 Not significant Activity 0.311 0.030 10.460 0.000 Significant rhTSH −5.430 2.441 −2.224 0.028 Significant Ingested-liquid volume −1.838 0.647 −2.842 0.005 Significant Time −1.744 0.180 −9.682 0.000 Significant Obese Age 0.175 0.170 1.033 0.305 Not significant Sex 3.697 4.244 0.871 0.387 Not significant Activity 0.372 0.059 6.290 0.000 Significant rhTSH 4.194 2.962 1.416 0.162 Not significant Ingested-liquid volume −1.787 0.991 −1.804 0.076 Not significant Time −1.684 0.219 −7.702 0.000 Significant 20–39 y old Sex 9.761 4.831 2.021 0.045 Significant Weight −0.173 0.121 −1.424 0.157 Not significant Height −14.304 23.165 −0.618 0.538 Not significant Activity 0.268 0.040 6.718 0.000 Significant rhTSH −2.669 1.919 −1.390 0.167 Not significant Ingested-liquid volume −2.832 0.944 −3.001 0.003 Significant Time −1.702 0.201 −8.480 0.000 Significant 40–64 y old Sex 1.485 2.545 0.584 0.560 Not significant Weight −0.128 0.035 −3.698 0.000 Significant Height 25.323 11.500 2.202 0.029 Significant Activity 0.351 0.031 11.288 0.000 Significant rhTSH −5.819 1.640 −3.548 0.000 Significant Ingested-liquid volume −2.256 0.539 −4.183 0.000 Significant Time −1.585 0.141 −11.216 0.000 Significant ≥65 y old Sex −17.999 4.331 −4.156 0.000 Significant Weight 0.158 0.150 1.048 0.299 Not significant Height 71.859 20.425 3.518 0.001 Significant Activity 0.018 0.002 9.459 0.000 Significant rhTSH −0.464 2.598 −0.179 0.859 Not significant Ingested-liquid volume −4.174 0.707 −5.906 0.000 Significant Time −0.013 0.003 −4.530 0.000 Significant
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