Template-based breast IMRT planning for increased workload efficiency

Radiation Oncology

Winkle Kwan¹  Bilal Shahine²  Cheryl McGregor²  Beverly Lester²  Jennifer Hayes²  Peter Steiner¹  Craig Elith¹  Vicky Huang¹  Krista Kuncewicz²  Sarah Kristensen¹  Ramani Ramaseshan²  Fred Cao¹  Sonia Kim Anh Nguyen¹ 

[1] British Columbia Cancer Agency-Fraser Valley Centre, 13750-96th Avenue, Surrey, BC, V3V 1Z2, Canada;British Columbia Cancer Agency- Abbotsford Centre, Abbotsford, BC, Canada

关键词: Radiation treatment;    Template-based intensity-modulated radiotherapy;    Breast cancer;   

Others  :  1154359
DOI  :  10.1186/1748-717X-8-67

 received in 2012-12-15, accepted in 2013-02-28,  发布年份 2013

【 摘 要 】

Background

To be less resource intensive, we developed a template-based breast IMRT technique (TB-IMRT). This study aims to compare resources and dose distribution between TB-IMRT and conventional breast radiation (CBR).

Methods

Twenty patients with early stage breast cancer were planned using CBR and TB-IMRT. Time to plan, coverage of volumes, dose to critical structures and treatment times were evaluated for CBR and TB-IMRT. Two sided-paired t tests were used.

Results

TB-IMRT planning time was less than CBR (14.0 vs 39.0 min, p < 0.001). Fifteen patients with CBR needed 18 MV, and 11 of these were planned successfully with TB-IMRT using 6 MV. TB-IMRT provided better homogeneity index (0.096 vs 0.124, p < 0.001) and conformity index (0.68 vs 0.59, p = 0.003). Dose to critical structures were comparable between TB-IMRT and CBR, and treatment times were also similar (6.0 vs 7.8 min, p = 0.13).

Conclusions

TB- IMRT provides reduction of planning time and minimizes the use of high energy beams, while providing similar treatment times and equal plans compared to CBR. This technique permits efficient use of resources with a low learning curve, and can be done with existing equipment and personnel.

【 授权许可】

   
2013 Nguyen et al.; licensee BioMed Central Ltd.

【 图 表 】

Figure 1.

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