دورية أكاديمية
Treatment optimisation using external beam radiation in gynaecological cancers
| العنوان: | Treatment optimisation using external beam radiation in gynaecological cancers |
|---|---|
| المؤلفون: | V. Sharma, U. Majeed, D. Joseph, S. Lindikile, N. Madhoo, H. Copelyn, J. Kotzen, M. Mohiuddin, B. Donde, D. van der Merwe |
| المصدر: | South African Journal of Radiology, Vol 8, Iss 3 (2004) |
| بيانات النشر: | AOSIS, 2004. |
| سنة النشر: | 2004 |
| المجموعة: | LCC:Medical physics. Medical radiology. Nuclear medicine |
| مصطلحات موضوعية: | Medical physics. Medical radiology. Nuclear medicine, R895-920 |
| الوصف: | 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. |
| نوع الوثيقة: | article |
| وصف الملف: | electronic resource |
| اللغة: | English |
| تدمد: | 1027-202X 2078-6778 |
| Relation: | https://sajr.org.za/index.php/sajr/article/view/120; https://doaj.org/toc/1027-202X; https://doaj.org/toc/2078-6778 |
| DOI: | 10.4102/sajr.v8i3.120 |
| URL الوصول: | https://doaj.org/article/9f416e4f1d39470cae0df5e920f85a53 |
| رقم الأكسشن: | edsdoj.9f416e4f1d39470cae0df5e920f85a53 |
| قاعدة البيانات: | Directory of Open Access Journals |
Full Text Finder | تدمد: | 1027202X 20786778 |
|---|---|
| DOI: | 10.4102/sajr.v8i3.120 |