Automated fluence map optimization based on fuzzy inference systems.

Journal: Medical physics
Published Date:

Abstract

PURPOSE: The planning of an intensity modulated radiation therapy treatment requires the optimization of the fluence intensities. The fluence map optimization (FMO) is many times based on a nonlinear continuous programming problem, being necessary for the planner to define a priori weights and/or lower bounds that are iteratively changed within a trial-and-error procedure until an acceptable plan is reached. In this work, the authors describe an alternative approach for FMO that releases the human planner from trial-and-error procedures, contributing for the automation of the planning process.

Authors

  • Joana Dias
    FEUC and Inesc-Coimbra, University of Coimbra, Coimbra 3004512, Portugal.
  • Humberto Rocha
    Inesc-Coimbra, University of Coimbra, Coimbra 3000033, Portugal.
  • Tiago Ventura
    Medical Physics Department, IPOCFG, EPE, Coimbra, Coimbra 3000075, Portugal and Physics Department, University of Aveiro, Aveiro 3810193, Portugal.
  • BrĂ­gida Ferreira
    School of Allied Health Technologies Polytechnic Institute of Porto, Vila Nova de Gaia, 4400330 and I3N Department of Physics, Aveiro University, Aveiro 3810193 Portugal.
  • Maria do Carmo Lopes
    Medical Physics Department, IPOCFG, EPE, Coimbra 3000075, Portugal.