[Rectal shielding for a Selectron-ring applicator system (HDR- and LDR-afterloading)].

Abstract

In order to decrease the morbidity rate after combined radiotherapy of the cervix carcinoma, a tungsten shield 3 and 5 mm thick for the rectum has been developed by the authors which is applied with the ring and pin applicator of the Selectron unit (LDR- and HDR-afterloading). The isodose curves were measured in a plexiglas phantom, and the radiation dose at the reference points was determined by means of a ionization dosimeter. The phantom measurements were performed with the same arrangement of sources as applied in radiotherapy. The measurements showed a dose reduction at point Rmax of 33% (HDR) and 44% (LDR) with the tungsten shield 5 mm thick.

• Authors: H Hetzel, H Kamleitner, M McCoy, H Frommhold
• Journal: Strahlentherapie und Onkologie : Organ der Deutschen Rontgengesellschaft ... [et al] (Strahlenther Onkol) Vol. 163 Issue 12 Pg. 782-6 (Dec 1987) ISSN: 0179-7158 [Print] Germany
• Vernacular Title: Rektumabschirmung für ein Selectron-Ringapplikator-System (HDR- und LDR-Afterloading).
• PMID: 3424077 (Publication Type: English Abstract, Journal Article)

Chemical References

• Tungsten

Topics

• Brachytherapy (instrumentation, methods)
• Carcinoma (radiotherapy)
• Evaluation Studies as Topic
• Female
• Humans
• Models, Structural
• Radiation Injuries (prevention & control)
• Radiation Protection (instrumentation)
• Radiotherapy Dosage
• Rectum
• Tungsten
• Uterine Cervical Neoplasms (radiotherapy)