Targeting Accuracy Check for MultiMet SRS
As clinics move toward single-isocenter multiple-met SRS treatments, more stringent off-axis QA is needed.
The MultiMet-WL Cube efficiently measures targets up to 7 cm off-axis within 0.1 mm accuracy.
Six Isocenters for MultiMet QA
The MultiMet-WL Cube uses six targets set at precise locations from isocenter to measure off-axis and rotational gantry, collimator, and couch errors.
Off-Axis WL Tests, Fast
Complete six off-axis Winston-Lutz tests in the time it would normally take to complete just one. Automated software and an optimized RT plan enable fast and clinically useful analysis of the combined W/L results.
“The MultiMet Winston Lutz cube is a very useful tool in our stereotactic treatment pathway, arguably our most complex treatment technique.
During commissioning on our second radiosurgery linac, it helped diagnose a genuine couch fault at an extreme angle. The MultiMet-WL gives us real confidence in our off-axis treatment deliveries. We use it without fail before every stereotactic treatment.”
Senior Clinical Scientist Clatterbridge Cancer Centre
8.5 x 8.5 x 12.75
6 (5 mm diameter) tungsten targets in specified locations
Target to Cross-Hair Tolerance
± 0.1 mm
Quantifiable Off-Axis Accuracy Range
Up to 7 cm
Cone, MLC, & Jaw Deliveries
Varian Medical Systems® Trilogy™, TrueBeam®, and Edge® Systems
Elekta Versa HD™ and Synergy® Systems
Windows 10 Pro 64-bit