title: Shaping of isodose curves in intracavitary irradiation using the afterloading method. A feasibility study involving mathematical simulation.
abstract: The possibility of adjusting the irradiation scheme to shape the isodose curve around an intracavitary source arrangement was studied mathematically. The total number of millicurie hours of irradiation for each source position was derived by a linear programming approach, taking into account the shape of the tumor in three different cases. The practical isodose curves obtainable with the source arrangement chosen were compared with the shape desired.
mesh_terms: D006801:Humans; D008433:Mathematics; D008954:Models, Biological; D009369:Neoplasms / Q000532:radiotherapy; D011878:Radiotherapy / Q000379:methods*; D011879:Radiotherapy Dosage