NCT00800189

Evaluation of the Informational Content of Setup Verification Images for Patients Receiving Breast Radiation Therapy (Anterior EPI)

A Prospective Evaluation of the Informational Content of Setup Verification Images for Patients Receiving Breast Radiation Therapy Tangentially With or Without Supraclavicular Treatment

• Status: Completed
• Phase: N/A
• Study type: Interventional
• Enrollment: 200 (estimated)
• Sponsor: British Columbia Cancer Agency · Academic / Other
• Sex: All
• Age: —
• Healthy volunteers: Not accepted

Summary

The purpose of this study is to determine if an alternative imaging protocol done at the time of radiotherapy treatments for patients with breast cancer can improve accuracy in patient set-up.

Detailed description

Accurate patient positioning is critical in Radiation Therapy. Electronic imaging is used to compare a patient's actual treatment position, with that which was planned from an initial CT scan. Radiation Therapists compare planned and actual images using analysis software to determine if differences are within acceptable tolerances. At the VIC, we use 3 different breast imaging protocols depending on the patient set-up and treatment technique. Findings from our recent retrospective planning study show that our current electronic imaging protocols miss some clinically significant patient set-up errors, particularly in the medial/lateral direction, and that these errors can be better detected with the use of an anterior image. The purpose of this study is to test these findings prospectively in clinical practice, through the direct comparison of our current protocols with a proposed new protocol, which would include an anterior electronic portal image (EPI).

Conditions

• Breast Cancer

Interventions

Type	Name	Description
RADIATION	Anterior electronic portal images (EPI)	EPI's are taken for the first three consecutive days of treatment to detect set-up errors.

Timeline

• Start date: 2008-08-01
• Primary completion: 2011-07-01
• Completion: 2011-08-01
• First posted: 2008-12-02
• Last updated: 2012-03-09

Locations

1 site across 1 country: Canada