4D dosimetry and its applications to pre-treatment quality control and real-time in vivo dosimetry of VMAT treatments

7th International Conference on 3D Radiation Dosimetry

Nordström, F.^1 ; Af Wetterstedt, S.^1 ; Bäck, S.Å.J.^1

not available^1

关键词: 4d dosimetries;    Absorbed dose;    Clinical treatments;    Control point;    Dose distributions;    ITS applications;    Pre-Treatment;    Real time;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/444/1/012021/pdf
DOI  :  10.1088/1742-6596/444/1/012021

来源: IOP

【 摘 要 】

In this study, a 4D dosimetry concept was developed. This concept included a method for calculation of 3D reference absorbed dose matrices at every control point of the delivery using a clinical treatment planning system (TPS). Further, the gamma evaluation method was extended to incorporate the 4thdimension of the TPS calculated dose distributions. The applications of the 4D dosimetry concept on pre-treatment quality control and real-time in vivo dosimetry were investigated.