alexa A Comparison of Thyroid Dose Distribution in 3-D Conformal Radiotherapy and Tomotherapy in Patients with Breast Cancer
ISSN: 2155-9619

Journal of Nuclear Medicine & Radiation Therapy
Open Access

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Research Article

A Comparison of Thyroid Dose Distribution in 3-D Conformal Radiotherapy and Tomotherapy in Patients with Breast Cancer

Eda Kucuktulu*, Ahmet Fatih Yurekli, Uzer Kucuktulu, Murat Topbas, Serdar Mahmut Sisecioglu and Inan Anaforoglu

Kanuni Research and Training Hospital Trabzon, Turkey

*Corresponding Author:
Eda Kucuktulu
Kanuni Research and Training Hospital Trabzon, Turkey
Tel: +905332176828
E-mail: [email protected]

Received date : April 10, 2014; Accepted date : May 26, 2014; Published date : June 02, 2014

Citation: Kucuktulu E , Yurekli AF, Kucuktulu U, Topbas M, Sisecioglu SM, et al. (2014) A Comparison of Thyroid Dose Distribution in 3-D Conformal Radiotherapy and Tomotherapy in Patients with Breast Cancer. J Nucl Med Radiat Ther 5:173. doi:10.4172/2155-9619.1000173

Copyright: © 2014 Kucuktulu E, et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.



Background and purpose: During the radiotherapy of breast cancer, especially when the supraclavicular lymph nodes are planned to be treated, a portion of thyroid gland may also be included in the treatment field. In this study we compared thyroid gland dose volume histograms (DVHs) of breast cancer patients receiving radiotherapy, planned in both CT-based three-dimensional planning system and MVCT-based image guidance aspect of helical tomotherapy system. Material and method: 20 breast carcinoma patients who were treated with 3-D conformal radiotherapy technique were evaluated concerning their thyroid gland dose distribution. The estimated minimum, mean and maximum thyroid gland doses were calculated for both 3-D conformal radiothreapy and tomothreapy planning systems. Additionally the volume of thyroid gland that received less than 30 Gy and more than 30 Gy were determined. Results: The maximum, mean and minimum doses of thyroid glands supposed to receive were found to be better with tomotherapy comparing to 3-D conformal therapy plans. The thyroid gland volume that receives more than 30 Gy was smaller in tomothreapy planning system comparing to 3-D conformal therapy planning system. Conclusion: Lower doses of radiation exposure to thyroid gland is possible with Tomotherapy.


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