[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: R Mösges, B Korves, J Ammon, B Kremer
• Journal: HNO (HNO) Vol. 39 Issue 11 Pg. 429-32 (Nov 1991) ISSN: 0017-6192 [Print] Germany
• Vernacular Title: Computerunterstützte Positionierung für das Nachladeverfahren mit Iridium-192.
• PMID: 1769865 (Publication Type: English Abstract, Journal Article)

Chemical References

• Iridium Radioisotopes

Topics

• Adult
• Aged
• Brachytherapy (instrumentation)
• Female
• Head and Neck Neoplasms (radiotherapy)
• Humans
• Iridium Radioisotopes (therapeutic use)
• Male
• Middle Aged
• Neoplasm Recurrence, Local (radiotherapy)
• Radiotherapy Planning, Computer-Assisted (instrumentation)
• Stereotaxic Techniques (instrumentation)
• Tomography Scanners, X-Ray Computed