Home About us Editorial board Ahead of print Current issue Search Archives Submit article Instructions Subscribe Contacts Login 
ORIGINAL ARTICLE
Year : 2013  |  Volume : 9  |  Issue : 1  |  Page : 64-70

Optimization of three dimensional planning dosimetric in breast phantom for match region of supraclavicular and tangential fields


1 Department of Medical Physics, Cancer Institute, Tehran University of Medical Sciences, Tehran, Iran
2 Department of Radiotherapy, Cancer Institute, Tehran University of Medical Sciences, Tehran, Iran

Correspondence Address:
Nourollahi Somayeh
Department of Medical Physics, Faculty of Medicine, Tehran University of Medical Sciences, Tehran
Iran
Login to access the Email id

Source of Support: This research was supported by a grant by Tehran University of Medical Sciences and Health, Conflict of Interest: None


DOI: 10.4103/0973-1482.110376

Rights and Permissions

Aim: Complex geometry of breast tissue causes perturbation in dose distribution. This problem can beget overdose or under-dose points in match region of three fields. The aim of this study is to create dose homogeneity distribution in match region between tangential and supraclavicular fields (SCF) with Gafchromic external beam therapy (EBT) film. Materials and Methods: In this study, an anatomical slab phantom was designed with cork lung inhomogeneity and plexiy colored heart part. Conventional and three dimensional (3D) methods were utilized along with Gafchromic EBT film. Results: In asymmetric fields (3D method) much better results in match region were observed (i.e., maximum amount overlap area of 0.43 cm 2 , overlap depth of 3.55 cm and an average overlap width of 0.75 cm). Conclusion: This study revealed that EBT film is a proper tool for two dimensional (2D) relative-dose measurements. The study showed difficulties in achieving homogenous dose distribution in match region of tangential and supraclavicular.


[FULL TEXT] [PDF]*
Print this article     Email this article
 Next article
 Previous article
 Table of Contents

 Similar in PUBMED
   Search Pubmed for
   Search in Google Scholar for
 Related articles
 Citation Manager
 Access Statistics
 Reader Comments
 Email Alert *
 Add to My List *
 * Requires registration (Free)
 

 Article Access Statistics
    Viewed2324    
    Printed73    
    Emailed3    
    PDF Downloaded168    
    Comments [Add]    

Recommend this journal