Prone Breast Irradiation for Pendulous Breasts
Recruitment status was: Active, not recruiting
|Study Design:||Allocation: Non-Randomized
Intervention Model: Single Group Assignment
Masking: Open Label
Primary Purpose: Treatment
|Official Title:||Mamma Board Project: Prone Breast Irradiation for Pendulous Breasts|
- In 10 patients a conventional simulation will be done in supine and prone position. A planning CT-scan will be obtained in both positions. A lead wire will be placed around the palpable breast tissue as an aid in the delineation.
- Volume of the CTV (cc),Maximum dose delivered in at least 1 cc,Minimum dose in PTV, delivered in at least 1% of the PTV
- PTV coverage (% of PTV < 95% of prescribed dose),Doses in organs at risk (heart: V30, V40, V50, lung: V20, MLD)
|Study Start Date:||December 2003|
|Estimated Study Completion Date:||January 2010|
Local excision followed by adjuvant radiotherapy has become standard treatment for women with early-stage breast cancer. Adjuvant radiotherapy may encounter technical difficulties in patients with pendulous breasts when treated in supine position.
Based upon literature and our own preliminary experiences, we hypothesize that for large pendulous breasts, breast irradiation in supine and prone position are equivalent with regard to coverage of the PTV, but with a better dose homogeneity in prone position and a smaller radiation exposure of lung and heart. However, no quantitative data are yet available to test this hypothesis. Therefore, the aim of our study is to compare the 3-D dose distribution in PTV and normal tissues in prone position versus supine position.
Please refer to this study by its ClinicalTrials.gov identifier: NCT00181363
|Maastricht Radiation Oncology|
|Heerlen, Limburg, Netherlands, 6419 PC|
|Principal Investigator:||Jeroen Buijsen, MD||Maastricht Radiation Oncology|