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논문 기본 정보

자료유형
학술저널
저자정보
이현직 (순천향대학교부속부천병원) 배선현 (순천향대학교) 조광환 (순천향대학교부속부천병원) 정재홍 (순천향대학교부속부천병원) 권수일 (경기대학교) 이길동 (경기대학교 의학물리학과)
저널정보
한국의학물리학회 의학물리 의학물리 제28권 제4호
발행연도
2017.12
수록면
218 - 225 (8page)
DOI
https://doi.org/10.14316/pmp.2017.28.4.218

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Effects on skin caused by the dose from linear accelerator (LINAC) opposing portal irradiation and TomoDirect 3-D modeling treatment according to the radiation devices and treatment methods were measured, and a comparative analysis was performed. Two groups of 10 patients each were created and measurements were carried out using an optically stimulated luminescence dosimeter. These patients were already receiving radiation treatment in the hospital. Using the SPSS statistical program, the minimum and maximum average standard deviations of the measured skin dose data were obtained. Two types of treatment method were selected as independent variables; the measured points and total average were the dependent variables. An independent sample T-test was used, and it was checked whether there was a significance probability between the two groups. The average of the measured results for the LINAC opposing portal radiation was 117.7 cGy and PDD 65.39% for the inner breast, 144.7 cGy and PDD 80.39% for the outer breast, 143.2 cGy and PDD 79.56% for the upper breast, 151.4 cGy and PDD 84.11% for the lower breast, 149.6 cGy and PDD 83.11% for the axilla, and 141.32 cGy and PDD 78.51% for the total average. In contrast, for TomoDirect 3-D conformal radiotherapy, the corresponding measurement values were 137.6 cGy and PDD 76.44%, 152.3 cGy and PDD 84.61%, 148.6 cGy and PDD 82.56%, 159.7 cGy and PDD 88.72%, and 148.6 cGy PDD 82.56%, respectively, and the total average was 149.36 cGy and PDD 82.98%. To determine if the difference between the total averages was statistically significant, the independent sample T-test of the SPSS statistical program was used, which indicated that the P-value was P=0.024, which was 0.05 lower than the significance level. Thus, it can be understood that the null hypothesis can be dismissed, and that there was a difference in the averages. In conclusion, even though the treatment dose was similar, there could be a difference in the dose entering the body surface from the radiation treatment plan; however, depending on the properties of the treatment devices, there is a difference in the dose affecting the body surface. Thus, the absorbed dose entering the body surface can be high. During breast cancer radiotherapy, radiation dermatitis occurs in almost all patients. Most patients have a difficult time while undergoing treatment, and therefore, when choosing a radiotherapy treatment method, minimizing radiation dermatitis is an important consideration.
#TomoDirect #LINAC #Breast cancer skin dose #OSL dosimetry

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참고문헌 (19)

참고문헌 신청
2016 / Annual report of cancer statistics in Korea in 2014 Korea Central Cancer Registry Cancer Registration & Statistics Branch google schola Veronesi U / 1995 / Breast conservation is a safe method in patients with small cancer of the breast long-term results of three randomized trials on 1,973patients / Eur J Cancer 31A:1574~1579 google schola Clarke M / 2005 / Effects of radiotherapy and of differences in the extent of surgery for early breast cancer on local recurrence and 15-year survival : An overview of the randomised trials / Lancet 366:2087~2106 google schola 김진희 / 2009 / Long-term Results of Breast-conserving Surgery and Radiation Therapy in Early Breast Cancer / Radiation oncology journal 27(3):153~162 dbpia 정용식 / 2011 / Nation-Wide Korean Breast Cancer Data from 2008 Using the Breast Cancer Registration Program / Journal of Breast Cancer 14(3):229~236 dbpia

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