Quality Assurance System for Advanced Radiology and Radiotherapy 
Modus offers a range of cost-effective and innovative quality assurance tools for imaging, image guidance and radiotherapy.
 
QUASAR™ tools are a valuable part of any quality assurance program. Designed by and for medical physicists, QUASAR™ quality assurance tools provide you with confidence that every patient is getting the best possible care.
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What We Offer Wide

QUASAR CRM Phantom Respiratory Motion Phantom Thumbnail Programmable Respiratory Motion Platform Side Catphan Shaker Actionshot
QUASAR™ Cylindrical Respiratory Motion Phantom simulates patient breathing by moving interchangeable inserts inside a cylindrical diode array.
 
 
 
QUASAR™ Respiratory Motion Phantom is a state-of-the-art breathing simulator for conducting QA testing on radiotherapy systems using patient respiratory waveforms.
 
 
QUASAR™ Respiratory Motion Platform is designed to move your existing phantoms with programmable respiratory and sinusoidal motion profiles for patient-specific QA.
 
 
QUASAR™ Catphan Shaker is designed to enable 4D CT image QA  by moving a Catphan® phantom with programmable respiratory and sinusoidal motion profiles.
 
 
 
 
 
 
 
 
QUASAR MP BP MR pRESP MRID3D GRID 3D Phantom
QUASAR™ Multi-Purpose Body Phantom is a flexible QA tool designed to perform both dosimetric and nondosimetric tests on radiotherapy systems.

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  QUASAR™ MRI-Compatible Respiratory Motion Phantom is used for daily testing to ensure the accuracy of linac-mounted IGRT systems, including CBCT, XVI and OBI.

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QUASAR™ MRID3D Geometric Distortion Analysis System is a new, patent pending, cost-effective QA system for quantifying geometric distortion in 3D MR images.
 

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QUASAR™ GRID3D Image Distortion Analyisis System is designed to produce a 3D map of spatial distortion with submillimeter accuracy throughout a volume of interest for SRS.

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DCE-CT Penta-Guide IsoCenter Cube QUASAR Verification Phantom
QUASAR™ Dynamic Contrast Enhanced CT (DCE-CT) system is routinely used to quantify and calibrate the CT number linearity for densities applicable to iodine injections.
 
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QUASAR™ Penta-Guide Phantom is used for daily testing to ensure the accuracy of linac-mounted Image-Guided Radiotherapy (IGRT) systems, including CBCT, XVI and OBI.

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QUASAR IsoCenter Cube Phantom is designed to perform a modified Winston-Lutz test for IGRT accuracy and analyze EPID radiation field exposures and report various errors.

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QUASAR™ Verification Phantom enables accurate measurements on a wide variety of radiotherapy techniques, including IMRT, SRS and rotational therapies.

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MLC Beam
QUASAR MLC Beam Geometry Phantom is designed to address the complex non-dosimetric, beam geometry and beam imaging features of modern planning systems by testing the integrity and revealing errors such as beam imaging and DICOM transfer.

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Accessories Wide

Cross Hairs cedar inserts thumbnail Rotation Stage Thumbnail Motion  Assembly Thumbnail
Crosshair & Field Edge Markers
Used as image reference detection markers in order to calculate pixel scaling and identify the center and size of a light field.
 
 
Optional Inserts
Increase IGRT and Gated QA test capabilities with interchangeable inserts for the QUASAR™ Respiratory Motion Phantom.
 
 
Rotation Stage
Adds non-linear motion to the QUASAR™ Respiratory Motion Phantom to enable inserts to rotate as they translate.
 
 
Respiratory Motion Assembly
An easy and cost-effective way to add IGRT Gating capabilities to the QUASAR™ Multi-Purpose Body Phantom.
 
 
 
 
 
 
 
 
Winston-Lutz Wand
 
Lehmann Yoke Thumbnail
 
Penta-Guide Hood Thumbnail
 
Winston-Lutz Wand
A device used in conjunction with the MV portal imager and the MLC’s or x,y jaws to identify the true isocenter of the LINAC.
 
Penta-Guide Lehmann Yoke
The QUASAR™ Penta-Guide Phantom comes with a Lehmann Yoke for verifying the source to surface distance (SSD) indicator.
 
Penta-Guide Hood
Used to confirm that the Varian Frameless Array or other visual position indicator is aligned with the CBCT and OBI.
 
Penta-Guide Tilt Plate
An easy and efficient way to verify couch corrections for 6DoF couches at known rotation angles and displacements.