Table 2.
Dose variation throughout the body during TSEBT in the standing and reclined positions.
| TLD location | Nr. of measurements† | Mean % of prescription dose |
||
|---|---|---|---|---|
| Standing | Reclined | P-value** | ||
| Top of head* | 84 | 98 ± 21 | 80 ± 19 | 0.09 |
| Forehead | 84 | 101 ± 12 | 67 ± 13 | ≤0.01 |
| Behind right ear* | 83 | 105 ± 16 | 68 ± 13 | ≤0.01 |
| Behind left ear* | 81 | 106 ± 17 | 49 | 0.09 |
| Sternal notch | 87# | 100 ± 10 | 58 ± 17 | 0.03 |
| Right axilla+ | 92# | 69 ± 22 | 22 ± 31 | ≤0.01 |
| Left axilla+ | 93# | 69 ± 23 | 16 ± 24 | ≤0.01 |
| Mid chest* | 93# | 103 ± 11 | 80 ± 20 | ≤0.01 |
| Umbilicus | 91# | 108 ± 11 | 85 ± 22 | ≤0.01 |
| Right inguinal* | 85 | 93 ± 18 | 78 ± 14 | 0.02 |
| Left inguinal* | 82 | 90 ± 21 | 77 ± 16 | 0.11 |
| Right inner thigh* | 84 | 92 ± 21 | 80 ± 25 | 0.3 |
| Left inner thigh* | 86# | 88 ± 25 | 85 ± 29 | 0.8 |
| Behind the right knee | 84 | 103 ± 12 | 71 ± 7 | ≤0.01 |
| Behind the left knee | 74 | 103 ± 13 | 83 ± 12 | 0.03 |
| Upper back | 93# | 107 ± 9 | 85 ± 21 | ≤0.01 |
| Lower back* | 91# | 105 ± 7 | 92 ± 24 | 0.4 |
| Perineum+ | 74 | 20 ± 26 | 29 ± 19 | 0.2 |
| Right sole+ | 72 | 34 ± 20 | 71 ± 34 | 0.014 |
| Left sole+ | 62 | 31 ± 20 | 66 ± 38 | 0.1 |
| Other regions | 155 | – | – | – |
Sites affected by changing variables as demonstrated in Table 3.
P-value calculated with two sample T-test for 2 independent groups.
Sites may include doubled TLD measurements coming from the same patients
Sites require local boost radiations.
Number of total TLD measurements analyzed for each site in both positioning techniques.