Table 2.
Peripheral dose (mGy) at the locations of interest in the Rando phantom. The doses reported are the average of the readings from two TLDs (uncertainty 5%); in cases where the values were different for more than 7%, both readings were reported. Abbreviations: TLDs=thermoluminescent dosimeters; CC=cranio-caudal; LINAC=linear accelerator; mMLC=micromultileaf collimator; CK=CyberKnife; R=right; nv=nerve; L=left.
| TLDs anatomical position | CC distance from the target (cm) | LINAC-mMLC (mGy) | LINAC-cone (mGy) | CK preshileding (mGy) | CK postshielding (mGy) | TomoTherapy (mGy) | Gamma Knife (mGy) |
|---|---|---|---|---|---|---|---|
| Target ant | 0 | 8200 | 9695∕9199 | 7900 | 6908 | 5322 | 8314∕7587 |
| Target post | 0 | 7500 | 6915∕6234 | 6800 | 7425 | 3588 | 7603∕7427 |
| R optic nv | 0 | 480 | 533∕414 | 870 | 867∕464 | 1772∕1940 | 366∕290 |
| L optic nv | 0 | 870 | 1106∕1119 | 340 | 369 | 2028 | 454∕519 |
| Thyroid | 15.5 | 45.0 | 62.8 | 55.0 | 20.9 | 6.9 | 13.2 |
| Sternum | 30.5 | 10.0 | 18.0 | 27.5 | 9.1 | 2.3 | 4.1 |
| Upper lung | 43.0 | 4.6 | 8.7 | 17.5 | 7.7 | 1.7 | 1.9 |
| Lower lung | 53.0 | 3.0 | 5.8 | 15.0 | 8.3 | 1.4 | 0.98 |
| Ovaries | 75.5 | 1.3 | 2.6 | 10 | 5.8 | 1.6 | 0.36 |
| Testes | 80.5 | 1.1 | 2.2 | 10 | 5.8 | 1.6 | 0.28 |