%0 Journal Article
	%A Xi Pei and  Ruifen Cao and  Hui Liu and  Chufeng Jin and  Mengyun Cheng and  Huaqing Zheng and  Yican Wu and  FDS Team
	%D 2011
	%J International Journal of Biomedical and Biological Engineering
	%B World Academy of Science, Engineering and Technology
	%I Open Science Index 56, 2011
	%T Beam Orientation Optimization Using Ant Colony Optimization in Intensity Modulated Radiation Therapy
	%U https://publications.waset.org/pdf/1058
	%V 56
	%X In intensity modulated radiation therapy (IMRT)
treatment planning, beam angles are usually preselected on the basis of
experience and intuition. Therefore, getting an appropriate beam
configuration needs a very long time. Based on the present situation,
the paper puts forward beam orientation optimization using ant colony
optimization (ACO). We use ant colony optimization to select the
beam configurations, after getting the beam configuration using
Conjugate Gradient (CG) algorithm to optimize the intensity profiles.
Combining with the information of the effect of pencil beam, we can
get the global optimal solution accelerating. In order to verify the
feasibility of the presented method, a simulated and clinical case was
tested, compared with dose-volume histogram and isodose line
between target area and organ at risk. The results showed that the
effect was improved after optimizing beam configurations. The
optimization approach could make treatment planning meet clinical
requirements more efficiently, so it had extensive application
perspective.
	%P 323 - 326