Radium implant to the parametrium in the treatment of stage IIIB carcinoma of the cervix: Analysis of dosimetry
| Autor: | Ralph M. Scott, Thongbliew Prempree, Wilfred Sewchand, Noel Bautro, Vinita Patanaphan |
|---|---|
| Rok vydání: | 1980 |
| Předmět: |
Male
Cancer Research Brachytherapy Uterine Cervical Neoplasms Rectum chemistry.chemical_element Radium Parametrium medicine Humans Dosimetry Radiology Nuclear Medicine and imaging Cervix Pelvis Radiation business.industry Parametrial Carcinoma Dose-Response Relationship Radiation medicine.anatomical_structure Oncology chemistry Female Implant Nuclear medicine business |
| Zdroj: | International Journal of Radiation Oncology*Biology*Physics. 6:927-934 |
| ISSN: | 0360-3016 |
| DOI: | 10.1016/0360-3016(80)90340-5 |
| Popis: | Radium needle implant to the parametrium in order to supplement the dose rates to the cervix, parametrium and pelvic wall from a protruding intrauterine tandem was simulated using the skeleton of an adult pelvis in a water phantom. The results of direct dosimetry are presented. The parametrial implant approach was instituted in our clinic in 1975 to minimize local failures, especially parametrial, in Stage IIIB carcinoma of the cervix. The technique is used with patients who cannot accomodate two vaginal ovoids with the intrauterine tandem for conventional intracavitary radium therapy because of the extent of the neoplastic disease. Our dosimetric results showed an increase in the parametrial and pelvic wall dose rates of better than 60% with a typical implant of six half-intensity (0.33 mg/cm.) needles to the affected parametrium; the bladder and rectum dose rates increased by less than 17%. There was a relatively minimal (8–13%) increase in the dose rates to other pelvic node-bearing sites. Results for a minimal implant to both proximal parametria and a clinical example of the parametrial implant application are also presented. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|