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Sponsors and Collaborators: |
Memorial Sloan-Kettering Cancer Center National Cancer Institute (NCI) |
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Information provided by: | Memorial Sloan-Kettering Cancer Center |
ClinicalTrials.gov Identifier: | NCT00582959 |
The purpose of this study is to test a new technology for obtaining x-ray images of your treatment fields when you are positioned on the treatment machine, to determine whether this new system is as reliable and easy to use as conventional systems.. These so-called portal images are normally taken on a weekly basis, prior to your radiation treatment. The new portal imaging system to be tested is designed to produce better quality images than are currently achievable, but with no additional dose or added treatment time.
Condition | Intervention |
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Radiation Treatment for Tumors |
Other: Cone Beam Imaging |
Study Type: | Interventional |
Study Design: | Diagnostic, Open Label, Single Group Assignment |
Official Title: | Feasibility Study of Cone Beam Imaging for Radiation Therapy Treatment Verification |
Estimated Enrollment: | 30 |
Study Start Date: | April 2004 |
Estimated Study Completion Date: | April 2010 |
Estimated Primary Completion Date: | April 2010 (Final data collection date for primary outcome measure) |
Arms | Assigned Interventions |
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1
Prototype, third generation EPID based portal imaging system utilizing the MV approach.
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Other: Cone Beam Imaging
Prototype, third generation EPID based portal imaging system utilizing the MV approach.
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The objective of this proposal is to test the clinical practicality of a new technology; cone beam imaging, for verification of treatment set up accuracy of cancer patients receiving radiation therapy. Currently, treatment accuracy is checked via use of 2-dimensional projection x-rays taken with the megavoltage treatment beam and electronic portal imaging devices (EPID). Typically 2 orthogonal portal images are obtained to confirm patient positioning accuracy. This method of treatment verification, however, usually provides images of poor quality and lacks true 3D information, thus making it difficult for the radiation oncologist to definitively confirm treatment accuracy. New generation EPIDs are capable of obtaining higher quality images at significantly lower imaging doses. Thus, for the same total imaging dose new generation EPIDs permit acquisition of many projection images rather than just 2 or 3. The combination of more images and higher quality images should permit more definitive assessment of treatment accuracy. We propose here to test the clinical practicality and reliability of a new prototype portal imaging system.
Genders Eligible for Study: | Both |
Accepts Healthy Volunteers: | No |
Inclusion Criteria:
Exclusion Criteria:
Contact: Michael Zelefsky, MD | zelefskm@mskcc.org |
United States, New York | |
Memorial Sloan Kettering Cancer Center | Recruiting |
New York, New York, United States, 10065 | |
Contact: Michael Zelefsky, MD zelefskm@mskcc.org | |
Principal Investigator: Michael Zelefsky, MD |
Principal Investigator: | Michael Zelefsky, MD | Memorial Sloan-Kettering Cancer Center |
Responsible Party: | Memorial Sloan Kettering Cancer Center ( Michael Zelefsky, MD ) |
Study ID Numbers: | 04-037, NCI CA59017 |
Study First Received: | December 20, 2007 |
Last Updated: | January 5, 2009 |
ClinicalTrials.gov Identifier: | NCT00582959 |
Health Authority: | United States: Institutional Review Board |
radiology imaging malignancy undergoing radiation therapy |