title: Three-dimensional photon radiotherapy planning for laryngeal and hypopharyngeal cancers. 2. Conformation treatment planning using a multileaf collimator.
abstract: Three-dimension dose distributions have been computed for 15 MV X-ray radiation therapy (MEVATRON 77, Siemens) of laryngeal and hypopharyngeal cancers using isocentric rotational technique with multileaf collimator. Using a new concave contour tracing algorithm, satisfactory dose delivery to the target volume and efficient protection of the normal tissues can be achieved.
authors.affiliation: Department of Radiology, Albert Szent-Györgyi Medical University, Hungary.
authors.forename: O
authors.initials: O
authors.lastname: Esik
authors.forename: J
authors.initials: J
authors.lastname: Bürkelbach
authors.forename: R
authors.initials: R
authors.lastname: Boesecke
authors.forename: W
authors.initials: W
authors.lastname: Schlegel
authors.forename: G
authors.initials: G
authors.lastname: Németh
authors.forename: W J
authors.initials: WJ
authors.lastname: Lorenz
mesh_terms: D006801:Humans; D007012:Hypopharyngeal Neoplasms / Q000532:radiotherapy*; D007822:Laryngeal Neoplasms / Q000532:radiotherapy*; D010934:Planning Techniques; D011827:Radiation; D011880:Radiotherapy Planning, Computer-Assisted; D015899:Tomography, Emission-Computed, Single-Photon