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eQA Diagram

Analyzing, trending, and reporting TG142 recommended tests... Automatically

QUASAR™ eQA software simplifies Machine QA through automated EPID image analysis, eliminating the need to purchase film. This time and cost-saving application automates the analysis and reporting for important TG142 recommended QA tests*.

QUASAR™ eQA software includes a central application which interacts with a SQL database and runs unattended in the background. It automatically analyzes EPID images, and manages communications, user roles, security settings and machine configurations.

The QUASAR™ eQA software client includes a DICOM viewer which interacts with the central application to enable the following functions:

  • Visualize and approve test results
  • View database trends
  • Manage test configurations

Distribute test results 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 saved as a PDF file.

*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

Key Features

  • Automated Analyzes of EPID-based QA tests
  • Acquires images from the portal imaging system
  • Quantify the quality of Electronic Imaging Devices (EPID)
  • Ability to create Custom QA forms
  • Built-in trending tools
  • Supports multiple role-based access control levels


  • Automatically performs recommended TG-142 QA tests
  • Eliminates the need for film
  • Automatically processes results and generates PDF reports
  • Consolidates all of your QA data into one location
  • Identifies patterns and trends in your QA data
  • Restrict system access to authorized users to secure data

Testing Capabilities

For recommended TG142 machine QA procedures

Effectively analyze a variety of TG142 QA procedures accurately and efficiently including:

  • Coincidence of Light Field vs Radiation Field
  • Imager Scaling Verification
  • Small Field Radiation Size
  • Asymmetrical Field Size
  • Gantry, Collimator and Table Isocenter Verification
  • Stereotactic Radiation Isocenter
  • Jaw Slippage with Gantry Angle
  • Field Junction Verification
  • MLC Leaf Position Verification
  • MLC Dynamic Leaf Speed
  • MLC Spoke Shot Analysis
  • MLC Leaf Position Repeatability
  • Collimator Size Indicator
  • Half Beam Block Junction at Orthogonal Angles
Each test involves FIVE separate tasks:
  1. Test set-up
  2. Image acquisition
  3. Automated image analysis
  4. Approval
  5. Automated database storage of approved results


Custom QA FormsCustom QA Forms

Save the results of any Quality Assurance test to the QUASAR™ eQA database by creating custom QA forms that suit your clinic’s needs. Input data such as; boolean, single value, and multi-value (with calculations) to perform trend analysis with ease. Generate reports to share with physicist and radiation therapists.

QA SchedulerQA Scheduler

The QA Scheduler enables users to plan process flows and complete quality assurance processes. Provide timelines for daily, weekly, monthly and annual quality assurance tests. Organize your workload per LINAC and per staff member. Track and report the time allocated for your quality assurance process.

Trend AnalysisTrend Analysis

QUASAR™ eQA provides an innovative set of tools to identify patterns and trends in your QA data. Incorporate statistical process control by utilizing the QUASAR™ warehouse database for better trend analysis, reporting and visual display of QA data.


QUASAR™ eQA allows users to create and save detailed reports in PDF format or export data into Microsoft Excel worksheets as a useful method of applying additional data analysis tools.

Workflow EfficiencyWorkflow Efficiency

With an emphasis on operational efficiency, QUASAR eQA improves workflow by automating routine processes, and saves time by reducing workload and simplifying reporting. The enhanced SQL database supports rapid access to all QA data with ease, making spreadsheets obsolete.

Expanded LINAC SupportExpanded LINAC Support

Download and install updates to maximize the value of your QUASAR eQA Software. Administrators can now select the new high resolution Agility™ (160-leaf MLC from ELEKTA) during configuration of the latest release.

Message CenterMessage Center

Program the software to automatically send data, images and reports to authorized users to accept and/or discard tests results whenever a process requires validation.

Users & RolesUsers & Roles

Create, edit, remove and/or disable user accounts. Manage user control access privileges. Assign users to one or more pre-defined roles to determine what operations a user is allowed to perform.

Automated software to analyze Machine QA performance

Automated software to analyze Machine QA performance

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Product Data SheetProduct Data Sheet

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