DocumentCode
2570279
Title
IMRT with Fuzzy Prescribed Target Dose Vector
Author
Fakharzadeh, A.J. ; Maleki, H.R. ; Bozorg, O.
Author_Institution
Dept. of Math., Shiraz Univ. of Technol., Shiraz, Iran
fYear
2009
fDate
15-17 May 2009
Firstpage
998
Lastpage
1001
Abstract
Based on the clinical witnesses, in the IMRT some of the parameter are fuzzy. In the paper, the best treatment was shown as a solution of an optimization problem with quadratic objective function, where the prescribed target dose vector is fuzzy. Then the defuzzying procedure was done and since the solution set was non-convex, the optimal solution was obtained by relaxation method. Two clinical numerical example was given.
Keywords
dosimetry; fuzzy set theory; optimisation; radiation therapy; IMRT; defuzzying procedure; fuzzy prescribed target dose vector; optimization; quadratic objective function; relaxation method; Apertures; Cancer; Fuzzy systems; Heart; Linear programming; Lungs; Neoplasms; Relaxation methods; Signal processing; X-rays; IMRT; SDG method; defuzzy; fuzzy prescribed dose; optimization;
fLanguage
English
Publisher
ieee
Conference_Titel
2009 International Conference on Signal Processing Systems
Conference_Location
Singapore
Print_ISBN
978-0-7695-3654-5
Type
conf
DOI
10.1109/ICSPS.2009.175
Filename
5166942
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