Estimation of Surface Skin Dose Using TPS and TLD of Breast Radiotherapy Using Co-60 Teletherapy Unit
Elywa, M., Hanfy, M., Abd Elgawad, M., El-okba, B. (2020). Estimation of Surface Skin Dose Using TPS and TLD of Breast Radiotherapy Using Co-60 Teletherapy Unit. EKB Journal Management System, 53(1), 200-207. doi: 10.21608/ajnsa.2019.14766.1234
Mohammed Elywa; Magda Hanfy; Mohamad Abd Elgawad; Basma El-okba. "Estimation of Surface Skin Dose Using TPS and TLD of Breast Radiotherapy Using Co-60 Teletherapy Unit". EKB Journal Management System, 53, 1, 2020, 200-207. doi: 10.21608/ajnsa.2019.14766.1234
Elywa, M., Hanfy, M., Abd Elgawad, M., El-okba, B. (2020). 'Estimation of Surface Skin Dose Using TPS and TLD of Breast Radiotherapy Using Co-60 Teletherapy Unit', EKB Journal Management System, 53(1), pp. 200-207. doi: 10.21608/ajnsa.2019.14766.1234
Elywa, M., Hanfy, M., Abd Elgawad, M., El-okba, B. Estimation of Surface Skin Dose Using TPS and TLD of Breast Radiotherapy Using Co-60 Teletherapy Unit. EKB Journal Management System, 2020; 53(1): 200-207. doi: 10.21608/ajnsa.2019.14766.1234

Estimation of Surface Skin Dose Using TPS and TLD of Breast Radiotherapy Using Co-60 Teletherapy Unit

Arab Journal of Nuclear Sciences and Applications
Article 21, Volume 53, Issue 1, January 2020, Page 200-207  XML PDF (1007.26 K)
Document Type: Original Article
DOI: 10.21608/ajnsa.2019.14766.1234
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Authors
Mohammed Elywa email 1; Magda Hanfy2; Mohamad Abd Elgawad3; Basma El-okba4
1Physics Department, Faculty of science,Zagazig University, Zagazig, Egypt
2department of physics, faculty of science, zagazig university, egypt
3Nuclear medicine Department, Faculty of medicine, Zagazig University, Egypt
4M Sc. student, Physics Department, Faculty of Science, Zagazig University, Egypt
Abstract
Estimation of surface skin dose is very important for patients who undergo breast radiotherapy to show that the skin dose is under the safe level and to avoid tumor recurrence. The aim of this study is utilizing the thermolumiscent dosimeters (TLDs) as quality control in conventional radiotherapy procedures. Twenty patients undergo breast remove were stimulated by treatment planning system (TPS) and six lithium florid TLD-LiF chips have applied at the irradiated breast area. All measurements were performed using a Co-60 teletherapy (open field). All TLD chips were measured using the Harshaw 6600 reader system. Results have been shown that the correlation coefficient and the Bland–Altman agreement plot of 20 patients at six points illustrated that no significant difference (p>0.05) between TPS calculations and TLD measurements except at beams centers, there is high significance difference (p<0.001), where the high dose was applied. Thus, the conclusion is that not all locations in the area of treatment absorbed the same dose either using TLD measurements or using TPS values
Keywords
Co-60 Radiotherapy; breast cancer; TLD Detectors; TPS system
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