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- Title
Evaluation of Dose Distribution in Optimized Stanford Total Skin Electron Therapy (TSET) Technique in Rando Anthropomorphic Phantom using EBT3 Gafchromatic Films.
- Authors
Monzari, Shaghayegh Fahimi; Geraily, Ghazale; Aghili, Mehdi; Toolee, Heydar
- Abstract
Background: The Total Skin Electron Therapy (TSET) targets the whole of skin using 6 to 10 MeV electrons in large field size and large Source to Surface Distance (SSD). Treatment in sleeping position leads to a better distribution of dose and patient comfort. Objective: This study aims to investigate the uniformity of absorbed dose in the sleeping Stanford technique on the Rando phantom using dosimetry. Material and Methods: It is an experimental study which was performed using 6 MeV electron irradiation produced by Varian accelerator in the AP and PA positions with gantry angles of 318/3, 0 and 41/5 degrees, and RAO, LAO, RPO and LPO with 291/4 gantry angle and 45 degrees of collimator angle in the sleeping position. Results: The results show that the dose uniformity achieved in this technique is in the range of (100 ± 25%) and, the dose accuracy was 6%. Conclusion: Total Skin Electron Therapy (TSET) technique in sleeping position is very suitable for elderly and disabled patients, and meets the required dose uniformity. Furthermore, the use of a flattening filter is recommended for the more dose distribution uniformity.
- Subjects
SLEEP positions; ELECTRONS; ABSORBED dose; IMAGING phantoms; OLDER patients; UNIFORMITY; RADIATION dosimetry
- Publication
Journal of Biomedical Physics & Engineering, 2021, Vol 11, Issue 4, p425
- ISSN
2251-7200
- Publication type
Article
- DOI
10.31661/jbpe.v0i0.1035