AI Article Synopsis
- The study aimed to assess the cumulative radiation dose at point A using 3 cm and 4 cm central shielding.
- After applying the shielding to a standard radiotherapy plan, the cumulative doses were calculated in EQD2 for both shielding types.
- Results indicated that 3 cm central shielding resulted in a higher cumulative dose at point A compared to 4 cm central shielding.
Article Abstract
Purpose: To evaluate the cumulative dose at point A for three and four centimeters central shielding.
Material And Methods: The plans of external beam radiotherapy plus conventional intracavitary brachytherapy were performed. Three or four centimeters central shieldings (after 44 Gy) were applied to the standard whole pelvis irradiation. Additional intracavitary brachytherapy 4 × 7 Gy at point A was prescribed, and the cumulative dose in EQD2 (α/β = 10) of 3 cm and 4 cm central shielding were evaluated.
Results: The cumulative dose at point A in EQD2 (α/β = 10) of 3 cm central shielding were 95.7 Gy for AR and 95.5 Gy for AL, while the cumulative dose at point As in EQD2 (α/β = 10) of 4 cm central shielding were 90.8 Gy for AR and 91.2 Gy for AL.
Conclusions: The 3 cm central shielding caused higher cumulative dose (in terms of EQD2 [α/β = 10]) than 4 cm central shielding.
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| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3899634 | PMC |
| http://dx.doi.org/10.5114/jcb.2013.38781 | DOI Listing |
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