Semi-automated radiotherapy treatment planning with a mathematical model to satisfy treatment goals.

摘要: Abstract Iterative algorithms can provide a feasible solution, if any exists, to specified treatment goals. Our model subdivides both the patient's cross section into fine grid of points and radiation beam set “pencil” rays. The anatomy, machine parameters, dose limits homogeneity, are all defined. This process subdivision leads large system linear inequalities with solution that provides intensity distribution will deliver prescribed distribution. clinical results from two different be presented contrasted. Once treatment, parameters have been entered, computerized yield an answer in several minutes. Cimmino algorithm also allows “weights” or priority assignments resulting is biased towards fulfilling doses for anatomic regions which were given greater weight. It desirable systematic search possible alternatives complex situations, including 3-dimensional therapy planning (RTTP). method has applied 2-D RTTP, but equally applicable 3-D RTTP minor modifications.