Intensity modulated radiation therapy (IMRT), based on the
use of non-uniform radiation beam intensity of a new step
in conformal radiotherapy. Was able to get the optimal dose
distributions with IMRT can improve the clinical results. In
case of inadequate use of IMRT, the result may be worse than
conventional treatments. Multiple sub-areas the accuracy of
IMRT dose used in these fields depends on the performance
of linear accelerator quality control tests. Multileaf collimator
(MLC) positioning accuracy, table movement, gantry and
collimator indicators, with a gantry rotation speed and a lot
of parameters such as rates of MLC. Linear accelerators used
for IMRT in the treatment of pre-defined quality control program
within the mechanical and dosimetric tests should be
done periodically. In this study, linear accelerators capable
of IMRT and IMRT plans for quality controls were investigated
in the literature.
Keywords: Quality assurance; MLC; intensity modulated radiotherapy
