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Iranian Journal of Medical Physics، جلد ۷، شماره ۳، صفحات ۴۷-۵۴
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عنوان انگلیسی The Comparison 2D and 3D Treatment Planning in Breast Cancer Radiotherapy with Emphasis on Dose Homogeneity and Lung Dose
چکیده انگلیسی مقاله Introduction: Breast conserving radiotherapy is one of the most common procedures performed in any radiation oncology department. A tangential parallel-opposed pair is usually used for this purpose. This technique is performed using 2D or 3D treatment planning systems. The aim of this study was to compare 2D treatment planning with 3D treatment planning in tangential irradiation in breast conserving radiotherapy. In this comparison, homogeneity of isodoses in the breast volume and lung dose were considered. Material and Methods: Twenty patients with breast cancer treated with conservative surgery were included in this study. The patients were CT scanned. Two-dimensional treatment planning with the Alfard 2D TPS was performed for each patient using a single central CT slice. The data used on the Alfard 2D TPS was imported into the Eclipse 3D TPS, on which 3D treatment planning was performed. Cobalt-60 beams were used in all plans. Results: Comparing 2D and 3D treatment planning, homogeneity of isodoses was improved in 3D treatment planning (p< 0.02). Volume of lung receiving a dose of >30Gy was increased in 3D treatment planning (p< 0.01). Discussion and Conclusion: 3D treatment planning is a more suitable option for patients with breast cancer treated with conservative surgery because of improved dose homogeneity in 3D treatment planning. The results of the treatment can be improved with reduced recurrence probability and skin problems.
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نویسندگان مقاله زهرا فلاحت پور | zahra falahatpour
m.sc. graduate of medical radiation, nuclear engineering dept., faculty of nuclear engineering, shahid beheshti university, tehran, iran

سازمان اصلی تایید شده: دانشگاه شهید بهشتی (Shahid beheshti university)

سید محمودرضا آقامیری | seyed mahmood reza aghamiri
associate professor, nuclear engineering dept., faculty of nuclear engineering, shahid beheshti university, tehran, iran

سازمان اصلی تایید شده: دانشگاه شهید بهشتی (Shahid beheshti university)

رباب انبیایی | robab anbiaee
assistant professor, radiotherapy and oncology dept., emam hossein hospital, shahid beheshti university, tehran, iran

سازمان اصلی تایید شده: دانشگاه شهید بهشتی (Shahid beheshti university)

نشانی اینترنتی http://ijmp.mums.ac.ir/article_7253.html
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زبان مقاله منتشر شده en
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نوع مقاله منتشر شده Original Paper
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