Treatment optimisation using external beam radiation in gynaecological cancers

SA Journal of Radiology

Field Value
Title Treatment optimisation using external beam radiation in gynaecological cancers
Creator Sharma, V. Majeed, U. Joseph, D. Lindikile, S. Madhoo, N. Copelyn, H. Kotzen, J. Mohiuddin, M. Donde, B. van der Merwe, D.
Subject — —
Description The majority of patients with gynaecological cancers present with advanced stages in which external beam radiation forms a major component of the treatment. These patients undergo simulation for treatment planning prior to radiation. Currently the lower extent of the disease is evaluated by vaginal examination and marked using a lead wire on the anterior abdominal wall in the pelvic region. A 2 cm margin inferior to this level is used as the lower border of the treatment field. The suggested modified technique includes the placement of an indigenously designed perspex vaginal obturator with graduations at 1 cm distance from its tip. Following vaginal examination the obturator can be inserted into the vagina and fixed at the predefined length using a fixation device. The radio-opaque markers can be seen even in the lateral films. Twentyfive consecutive patients underwent the procedure and the differences between the two methods of marking the lower border were calculated. The external lead wire was inferior to the internal obturator in 19 patients (76%) ranging from 0.5 cm to 3 cm (median 1.5 cm, mean 1.37 cm). It was at the same level in 4 patients (16%) and 1 cm superior to the internal obturator in 2 (8%). With the modified technique using the internal obturator application for delineating the lower border of vaginal disease or vault, it was possible to decrease the length of field thereby reducing the chances of treatment-related toxicity, especially groin and vulval reactions, as well as avoiding treatment interruptions.
Publisher AOSIS
Date 2004-06-09
Type info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion — —
Format application/pdf
Identifier 10.4102/sajr.v8i3.120
Source South African Journal of Radiology; Vol 8, No 3 (2004); 23 2078-6778 1027-202X
Language eng
The following web links (URLs) may trigger a file download or direct you to an alternative webpage to gain access to a publication file format of the published article:
Coverage — — —
Rights Copyright (c) 2004 V. Sharma, U. Majeed, D. Joseph, S. Lindikile, N. Madhoo, H. Copelyn, J. Kotzen, M. Mohiuddin, B. Donde, D. van der Merwe