Strategies for quality assurance of intensity modulated radiation therapy

8th International Conference on 3D Radiation Dosimetry

Benedek, Hunor^1 ; Isacsson, Ulf^2 ; Olevik-Dunder, Maria^3 ; Westermark, Mathias^3 ; Hållström, Per^4 ; Olofsson, Jörgen^5 ; Gustafsson, Magnus^6

Skåne University Hospital, Lund, Sweden^1

Uppsala University Hospital, Uppsala, Sweden^2

Karolinska University Hospital, Stockholm, Sweden^3

Gävle Hospital, Gavle, Sweden^4

Norrland's University Hospital, Umeå, Sweden^5

Sahlgrenska University Hospital, Göteborg, Sweden^6

关键词: Intensity modulated radiation therapy;    IS process;    Measurement-based;    Practical guidelines;    Pre-Treatment;    Radiation physics;    Swedishs;    Working groups;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/573/1/012015/pdf
DOI  :  10.1088/1742-6596/573/1/012015

来源: IOP

【 摘 要 】

In late 2011 The Swedish Society of Radiation Physics formed a working group to concentrate on the Quality Assurance of modern radiation therapy techniques. The given task was to identify and summarise the different QA strategies in Sweden and also the international recommendations. This was used to formulate recommendations for practical guidelines within Sweden. In this paper a brief summery of the group's work is presented. All the Swedish radiation therapy centres do a pre treatment verification measurement as QA for every new IMRT and VMAT plan. Physicists do it and they believe it to be time consuming. A general standpoint from all the centres was that new guidelines and legislation is needed to allow QA that does not require a measurement. Based on various international publications and recommendations the working group has presented two strategies, one where all new plans are checked through measurement and one where no measurement is needed. The measurement- based strategy is basically the same as the one used today with an extended machine QA part. The other presented strategy is process oriented where all the different parts of the treatment chain are checked separately. The final report can be found in Swedish on http://www.radiofysik.org.