Use your EPID to Automate and Simplify Machine QA

• Leaf Speed Verification
• Half Beam Block Junction at Orthogonal Gantry Angles
• Jaw Slippage with Gantry Angle
• Treatment Couch Motion Verification
• Radiation Field Center, with enhanced field of view for:
                         -Light vs. Radiation Coincidence
                         -Field Junction Verification
                         -MLC Leaf Position Verification
  
  

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  QUASAR™ eQA software is designed to simplify linac QA through automated EPID image analysis.  This time-saving application automates the analysis and reporting for six important QA tests, most of which are recommended by TG 142(1).  Using eQA and your EPID eliminates the need to use film for these tests..

  eQA includes a central application which interacts with a SQL database.  Running unattended in the background, the application automatically analyzes EPID images.  It also manages communications, security and linac configuration. eQA also includes a CITRIX-enabled thin client with unlimited installations. The eQA client, which includes a DICOM viewer, interacts with the central application to enable the following functions: Visualize and approve test results View database trends Manage test configurations

  Screen shot – eQA Home page

  
  Test results are broadcast by email to a pre-determined list of email recipients. Approved test results are retained in a database for long-term storage and trend analysis. Results can be exported to Excel or PDF files if required.

1)    KLEIN, E. et al, Quality assurance of medical accelerators: Report of AAPM Radiation Therapy Committee Task Group 142, Med. Phys. 36 (9),September 2009, 4197- 4212