[Home ] [Archive]    
:: Main :: About :: Current Issue :: Archive :: Search :: Submit :: Contact ::
:: Volume 15, Issue 3 (7-2017) ::
IJRR 2017, 15(3): 259-266 Back to browse issues page
Dosimetric comparison of TomoDirect and TomoHelical plans in post-mastectomy chest wall radiation therapy
F. Teke Dr. , H.M. Doğan , M.A. Kaya , M. Gümüş
Dicle University, Medical School, Department of Radiation Oncology, Yenişehir 21280 Diyarbakır, Turkey , doktorfatmateke@gmail.com
Abstract:   (403 Views)
Background: The purpose of this study was to evaluate the characteristics of TomoDirect (TD) plans compared to conventional TomoHelical (TH) plans in chest wall irradiation in patients with breast cancer. Materials and Methods: TD and TH plans for only chest wall were retrospectively created for 30 patients 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 fractions. Results: The mean treatment times were similar in TH and TD (310.8 and 309 s, respectively, 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 patients (p<0.001, p<0.001 and p=0.001, respectively).  V25 and V30 values of the heart were significantly lower in TH than those in TD plan in left-sided chest wall irradiation (p=0.006 and p<0.001, respectively). 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 radiation to the critical organs; TD mode improve dose distribution.
 

 
Keywords: Breast cancer, TomoDirect, TomoHelical, chest wall irradiation.
Full-Text [PDF 698 kb]   (47 Downloads)    
Type of Study: Original Research | Subject: Radiation Biology
Send email to the article author

Add your comments about this article
Your username or Email:

Write the security code in the box >



XML     Print


Download citation:
BibTeX | RIS | EndNote | Medlars | ProCite | Reference Manager | RefWorks
Send citation to:

Teke F, Doğan H, Kaya M, Gümüş M. Dosimetric comparison of TomoDirect and TomoHelical plans in post-mastectomy chest wall radiation therapy . IJRR. 2017; 15 (3) :259-266
URL: http://ijrr.com/article-1-2056-en.html
Volume 15, Issue 3 (7-2017) Back to browse issues page
International Journal of Radiation Research
Persian site map - English site map - Created in 0.048 seconds with 800 queries by yektaweb 3531