eQA QA Software

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Key Features
  • Analyzes TG142 recommended Machine QA tests automatically
  • Eliminate film with Electronic Portal Imaging Device (EPID) analysis 
  • Create custom QA forms to archive and trend data
  • Perform Trend Analysis to track and identify patterns in QA
  • Image analysis runs unattended in the background
  • Supports multiple user levels for controlled access and security
  • Flexible software architecture enables distributed use and remote access
  • Receive detailed up-to-date activity across the network from the QUASAR™ Message Centre
  • Organize your QA process with the QA scheduler
  • Supports CITRIX-enabled thin clients with unlimited installations

Automate, Simplify and now Extend your Machine QA

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(1).

QUASAR™ eQA includes a central application (QUASAR Core) 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 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


eQA Platform Diagram

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. 

Key Components

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: test set-up, image acquisition, automated image analysis, approval and automated database storage of approved results.  Arrow Learn more


Custom QA
Custom QA Forms
Consolidate all of your QA data
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 Scheduler
QA Scheduler
Plan your work, work your plan
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 Analysis
Track changing trends in QA data
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.
Generate detailed reports
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 Efficiency
Workflow Efficiency
Spend more time treating patients
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.
LINAC Support
Expanded LINAC Support
Updates to maximize ROI
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 Center
Share data, images and reports
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 & Roles
Control access and privileges
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.


Accessories to help you maintain a compliant facility

Cross Hairs


Crosshair & Field Edge Markers
The QUASAR™ Crosshair & Field Edge Marker templates are used as image reference markers when using QUASAR™ eQA software. Each template contains one or more radio-opaque markers which are detected within the analyzed images in order to calculate pixel scaling and identify the center and size of a light field.

Main Function(s):
  • Coincidence of Light Field vs Radiation Field
  • Imager Scaling Verification
  • Small Field Radiation Size
  • Asymmetrical Field Size
  • 29 cm x 29 cm x 6 mm thick acrylic cross hair
  • Multiple 3 mm diameter tungsten markers embedded in acrylic
  • Four acrylic field edge markers to mark field sizes from 6 cm x 6 cm and larger

Arrow Product Data Sheet

BB Train


BB Train
The QUASAR™ BB Train phantom is used as a reference point in space during the execution of the QUASAR™ eQA software Half Beam Block Junction at Orthogonal Angles test.

Main Function(s):
  • Half Beam Block Junction at Orthogonal Angles
  • 28 cm long by 2.5 cm diameter acrylic rod
  • Six 7/16” Steel BB embedded in rod

Arrow Product Data Sheet

Winston-Lutz Wand


Winston-Lutz Wand
The QUASAR™ Winston-Lutz Wand is used in conjunction with the MV Beam and portal imager to quantify mechanical outputs of the LINAC such as: relative gantry, collimator and table isocenter positions and overall diameters, linear positions, gantry sag, and jaw symmetry.

Main Function(s):
  • Gantry, Collimator and Table Isocenter Verification
  • Stereotactic Radiation Isocenter
  • Jaw Slippage with Gantry Angle
  • XYZ Micro Stage for positioning wand
  • 7/16” Steel BB
  • Counterbalanced stand for ease of use
  • Compatible with LINACS and EPIDS from multiple vendors
  • Comes with a convenient storage and carrying case

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*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

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Product Data Sheet 
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Accessory QA Phantoms
Click to learn more about other machine QA phantoms available for purchase.

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