title: [Computer-assisted placement for after-loading procedures with iridium 192].
abstract: Extremely high precision is needed to place radiation sources in the after-loading technique, but localisation techniques so far described do not offer the required accuracy. We used the computer-assisted surgery (CAS) localising system for the placement of after-loading probes in patients with head and neck carcinoma. Surgical instruments can be positioned without visual control using the CAS system. Since 1989 after-loading tubes have been placed using the CAS method. We evaluated the accuracy to be better than 1 mm. Ten after-loading treatments with iridium 192 of head and neck carcinomas were carried out between August 1989 and February 1991 with exact placement of the after-loading tubes in the nasopharynx. It seems feasible to treat cerebral tumours as well as tumours of the pelvic region by computer-assisted after-loading brachytherapy.
authors.affiliation: Klinik für Hals-, Nasen-, Ohren-Heilkunde, RWTH Aachen.
authors.forename: R
authors.initials: R
authors.lastname: Mösges
authors.forename: B
authors.initials: B
authors.lastname: Korves
authors.forename: J
authors.initials: J
authors.lastname: Ammon
authors.forename: B
authors.initials: B
authors.lastname: Kremer
mesh_terms: D000328:Adult; D000368:Aged; D001918:Brachytherapy / Q000295:instrumentation*; D005260:Female; D006258:Head and Neck Neoplasms / Q000532:radiotherapy*; D006801:Humans; D007496:Iridium Radioisotopes / Q000627:therapeutic use; D008297:Male; D008875:Middle Aged; D009364:Neoplasm Recurrence, Local / Q000532:radiotherapy; D011880:Radiotherapy Planning, Computer-Assisted / Q000295:instrumentation*; D013238:Stereotaxic Techniques / Q000295:instrumentation; D015898:Tomography Scanners, X-Ray Computed
chemical_list: D007496:Iridium Radioisotopes
vernacular_title: Computerunterstützte Positionierung für das Nachladeverfahren mit Iridium-192.