Dosimetric comparison of TomoDirect and TomoHelical plans in post-mastectomy chest wall radiation therapy

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Teke F.; Dogan M.H.; Kaya M.A.; GUMUS M.

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Journal: International Journal of Radiation Research Year:2017 | Volume:15 | Issue:3 Page(s): 259-266

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Information Journal Paper

Title

Dosimetric comparison of TomoDirect and TomoHelical plans in post-mastectomy chest wall radiation therapy

Author(s)

Teke F. | Dogan M.H. | Kaya M.A. | GUMUS M. | Issue Writer Certificate

Keywords

Breast cancer

TomoDirect

TomoHelical

chest wall irradiation

Abstract

Background: The purpose of this study was to evaluate the characteris cs of TomoDirect (TD) plans compared to conven onal TomoHelical (TH) plans in chest wall irradia on in pa ents with Breast cancer. Materials and Methods: TD and TH plans for only chest wall were retrospec vely created for 30 pa ents previously treated with TH technique in our clinic. The beam angles were arranged to cover PTV chest wall and to minimize doses to OARs, ipsilateral lung and contralateral breast in TD plan. The prescribed dose was 50 Gy in 25 frac ons. Results: The mean treatment mes were similar in TH and TD (310. 8 and 309 s, respec vely, p> 0. 05). There was no difference between the values of CI and HI of both plans (p>0. 05). The values of Dmean, V5 and V20 of the ipsilateral lung in TD plan was significantly lower than that in TH plan for all 30 pa ents (p<0. 001, p<0. 001 and p=0. 001, respec vely). V25 and V30 values of the heart were significantly lower in TH than those in TD plan in le5-sided chest wall irradia on (p=0. 006 and p<0. 001, respec vely). However, V5 values in TH was significantly higher than those in TD (p<0. 001). In the right-sided, there was no difference between two plans for V25 and V30 values of heart (p>0. 05). Conclusion: Both of TH and TD plans produce acceptable target dose coverage in chest wall RT. Considering the risk of low-dose radia on to the cri cal organs; TD mode improve dose distribu on.

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APA: Copy

Teke, F., Dogan, M.H., Kaya, M.A., & GUMUS, M.. (2017). Dosimetric comparison of TomoDirect and TomoHelical plans in post-mastectomy chest wall radiation therapy. INTERNATIONAL JOURNAL OF RADIATION RESEARCH, 15(3), 259-266. SID. https://sid.ir/paper/286881/en

Vancouver: Copy

Teke F., Dogan M.H., Kaya M.A., GUMUS M.. Dosimetric comparison of TomoDirect and TomoHelical plans in post-mastectomy chest wall radiation therapy. INTERNATIONAL JOURNAL OF RADIATION RESEARCH[Internet]. 2017;15(3):259-266. Available from: https://sid.ir/paper/286881/en

IEEE: Copy

F. Teke, M.H. Dogan, M.A. Kaya, and M. GUMUS, “Dosimetric comparison of TomoDirect and TomoHelical plans in post-mastectomy chest wall radiation therapy,” INTERNATIONAL JOURNAL OF RADIATION RESEARCH, vol. 15, no. 3, pp. 259–266, 2017, [Online]. Available: https://sid.ir/paper/286881/en

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