title: [Optimizing target volume assessment in irradiation of intraocular melanomas with ruthenium applicators].
abstract: Radioactive applicators have been used for conservative therapy of melanomas in the vicinity of the nervus opticus and of melanomas of the ciliary body for a few years. The aim of optimal radiotherapy is to destroy all tumor cells and to protect the optic nerve and macula. Therefore, we calculated the dose distributions and isodoses for ruthenium applicators. Isodoses show underdosage or overdosage in the tumor area. We also present a calculation model with which it is possible to simulate selective shielding of activated parts of the applicator.
authors.affiliation: Abteilung für Strahlentherapie, Universitätsklinik für Radiologie, Graz, Osterreich.
authors.forename: E
authors.initials: E
authors.lastname: Poier
authors.forename: G
authors.initials: G
authors.lastname: Langmann
authors.forename: H
authors.initials: H
authors.lastname: Leitner
authors.forename: B
authors.initials: B
authors.lastname: Vidic
mesh_terms: D001918:Brachytherapy / Q000379:methods*; D003198:Computer Simulation; D005134:Eye Neoplasms / Q000532:radiotherapy*; D006801:Humans; D008545:Melanoma / Q000532:radiotherapy*; D011879:Radiotherapy Dosage; D011880:Radiotherapy Planning, Computer-Assisted; D012429:Ruthenium Radioisotopes / Q000627:therapeutic use*
chemical_list: D012429:Ruthenium Radioisotopes
vernacular_title: Optimierung der Zielvolumserfassung bei der Bestrahlung intraokularer Melanome mittels Rutheniumapplikatoren.