IGRT: Can 3D Ultrasound Be Used Reproducibly by Radiation Therapists in Partial Breast Image-Guided Radiation Therapy

• Sponsor: British Columbia Cancer Agency (Other)
• Overall Status: Completed
• CT.gov ID: NCT00911456
• Collaborator: (none)
• Enrollment: 27
• Location: 1
• Duration (Months): 24
• Patients Per Site Per Month: 1.1

Study Details

Study Description

Brief Summary

To determine if the Clarity 3DUS (3D Ultrasound) system can be used by multiple individuals to acquire 3DUS images and produce consistent TB (Tumor Bed) shifts for breast IGRT (Image-Guided Radiation Therapy).

Condition or Disease	Intervention/Treatment	Phase
Radiation Therapy for Primary Breast Cancer	Procedure: Image-Guided Radiation Therapy using 3D Ultrasound Guided-Therapy; Procedure: Ultrasound Guided Imaging; Procedure: 3 DUS	Phase 3

Detailed Description

TB Contouring The CT1, CT2, and US1 tumor beds will be manually contoured on the RM workstation by one of the study radiation therapists. Contouring will be performed using previously defined contouring guidelines. Available automatic contouring tools, including the 'interpolate' contouring function, may be utilized and contouring times will be recorded.

IGRT Assessment The patient will be set up on the breast board in treatment position. The 'ultra path' component of the Clarity system, which displays the path of the previous US acquired at CT simulation, will be used to guide the acquisition of US2. Although performed in the simulator room, the Clarity system will be used in 'treatment mode' thus simulating Clarity as it is used for IGRT. The study RT will first acquire the US2 scan. All steps following the acquisition of US2 will be performed off-line on the RM workstation without the need for further simulator or patient time.

Study Design

• Study Type: Interventional
• Actual Enrollment: 27 participants
• Allocation: N/A
• Intervention Model: Single Group Assignment
• Masking: None (Open Label)
• Primary Purpose: Treatment
• Official Title: Can 3D Ultrasound Be Used Reproducibly by Radiation Therapists in Partial Breast Image-Guided Radiation Therapy?
• Study Start Date: Oct 1, 2009
• Actual Primary Completion Date: Oct 1, 2011
• Actual Study Completion Date: Oct 1, 2011

Outcome Measures

Primary Outcome Measures

1. Will the Clarity of breast IGRT product have the potential to improve localization through its ability to compare 3DUS at the time of planning to 3DUS at the time of treatment. [Outcome will be measured three times during the 3DUS]

Eligibility Criteria

Criteria

• Ages Eligible for Study: 18 Years to 80 Years
• Sexes Eligible for Study: Female
• Accepts Healthy Volunteers: No

Inclusion Criteria:

• Subjects will be 27 consenting women undergoing CT simulation for adjuvant breast radiotherapy at VIC ≤16 weeks after BCS.

• Women must have primary tumors <3cm, pathologically N0 disease, and negative surgical margins.

• Seroma clarity score <2

Exclusion Criteria:

• Patients will be excluded if they have had mastectomy or receive adjuvant chemotherapy that results in the CT simulation session occurring >16 weeks after the BCS date.

Contacts and Locations

Locations

	Site	City	State	Country	Postal Code
1	BC Cancer Agency Vancouver Island BCCA	Victoria	British Columbia	Canada	V8R 6V5

Sponsors and Collaborators

• British Columbia Cancer Agency

Investigators

• Principal Investigator: Tanya Berrang, British Columbia Cancer Agency

Study Documents (Full-Text)

None provided.

More Information

Publications

None provided.

• ClinicalTrials.gov Identifier: NCT00911456
• Other Study ID Numbers: 0001
• First Posted: Jun 2, 2009
• Last Update Posted: Feb 17, 2012
• Last Verified: Oct 1, 2009

Study Results

No Results Posted as of Feb 17, 2012