RUBY
The Modular QA Phantoms
SYSTEM QA • LINAC QA • PATIENT QA
All essential QA applications.
Comprehensive testing of the entire treatment chain.
With its unique combination of a compact, easy-to-setup base phantom, the new head phantom and highly versatile test inserts, RUBY provides you with a simple, yet comprehensive solution that helps you evaluate the entire radiotherapy treatment process.
Its scalable, modular design makes it easy for you to stay flexible and add new inserts any time. Customize RUBY to your specific needs.
Choose your insert and start testing.
The RUBY Phantoms for Your Changing Needs
RUBY Base Phantom
Perform integrated tests of the entire treatment chain from imaging to treatment planning and verification with one basic phantom. Add and expand QA capabilities when needed.
As the new modular phantom platform for radiotherapy QA, RUBY comes with a variety of exchangeable, application-specific inserts that satisfy all test requirements in a modern treatment facility.
RUBY Head Phantom
An increasing number of special stereotactic radiations are performed with couch extensions equipped with head shells. For this type of application, the RUBY system can be combined with the RUBY head phantom. The RUBY head phantom is compatible with all inserts containing CT markers that indicate the central position of the inserts. The RUBY head phantom has been successfully tested with the Brainlab mask system as well as the Encompass (QFix) mask system.
RUBY - Manufactured inhouse at our modern workshop with sub-millimeter precision:
Just pick the suitable RUBY Insert for whatever task!
Multiple metastasis applications
Perform System QA for the non-isocentric treatment of multiple metastases, with the “System QA MultiMet” insert.
Key Features
- Dedicated to the verification of non-isocentric treatment techniques with or without couch rotation
- Enables the positioning of three detectors at different positions within the insert
- Detector positions simulate the locations of three brain metastases treated simultaneous using a single isocenter
- Three bone equivalent cylinders embedded to provide contrast for positioning using kV imaging systems
System QA
Choose the “System QA” insert for comprehensive end-to-end testing with one single insert.
Key Features
- MRI visibility in all commonly used sequences (T1, T2 and FLAIR at 1.5 T) – no additional components required
- ICRU-based tissue-equivalent materials (brain, lung, bone) for verification of dose calculations at different tissue densities
- CT and MRI cavities for accurate verification of the CT/MRI image fusion algorithm of treatment planning systems
- Point dose measurements with different detector types using the same insert
LINAC QA
Perform alignment checks of the entire system, including conventional as well as 6D couches, with the “Linac QA” insert.
Key Features
- System alignment and isocenter checks with one single insert
- Daily checks of IGRT positioning accuracy as recommended in AAPM TG-179 and TG-142
- Optional tilting base for 6D couch QA
- Tissue-equivalent bone structures for enhanced visibility in kV and MV images
- Ceramic MV visible sphere at isocenter for easy Winston-Lutz testing
- Automated analysis of EPID images with optional PTW IsoCheck epid software
- Integrated with Track-it
Patient QA
Select the “Detector” insert for measurement-based dose verification of patient treatment plans.
Key Features
- Fast, accurate point dose measurements with different detector types
- “Plug and Measure” convenience using detector holders – no need to replace phantom or exchange inserts
- Dose verification of non-coplanar treatment plans
Use the “Film” insert for high-resolution dose distribution measurements in a plane using radiochromic films.
One system for all tasks - All you need for your task
LINAC QA
Perform integrated tests of the entire treatment chain from imaging to treatment planning and verification with one basic phantom. Add and expand QA capabilities when needed.
As the new modular phantom platform for radiotherapy QA, RUBY comes with a variety of exchangeable, application-specific inserts that satisfy all test requirements in a modern treatment facility.
RUBY Base Phantom
Perform alignment checks of the entire system, including conventional as well as 6D couches, with the “Linac QA” insert.
Key Features
- System alignment and isocenter checks with one single insert
- Daily checks of IGRT positioning accuracy as recommended in AAPM TG-179 and TG-142
- Optional tilting base for 6D couch QA
- Tissue-equivalent bone structures for enhanced visibility in kV and MV images
- Ceramic MV visible sphere at isocenter for easy Winston-Lutz testing
- Automated analysis of EPID images with optional PTW IsoCheck epid software
- Integrated with Track-it
"Linac QA" insert
Optional tilting base for 6D couch QA
Tilting base
Winston-Lutz testing
A ceramic ball at the center of the RUBY Linac QA insert enables Winston-Lutz testing with RUBY.
The integration of the sphere into the Linac QA insert containing the four bone cylinders allows a variety of initial positions for the Winston-Lutz test. The RUBY phantom can be aligned according to the laser system using the black lines. In addition, the RUBY phantom may also be positioned on the couch using the CBCT imaging or the planar kV images. Thus, the RUBY phantom can be either positioned in the origin of the laser system or in the origin of the imaging’s coordinate system. The acquired MV images can be evaluated using IsoCheckEPID.
Patient QA
Perform integrated tests of the entire treatment chain from imaging to treatment planning and verification with one basic phantom. Add and expand QA capabilities when needed.
As the new modular phantom platform for radiotherapy QA, RUBY comes with a variety of exchangeable, application-specific inserts that satisfy all test requirements in a modern treatment facility.
RUBY Base Phantom
"Film" insert for high-resolution dose distribution measurements in a plane using radiochromic films
"Film" insert
Select the “Detector” insert for measurement-based dose verification of patient treatment plans.
Key Features
- Fast, accurate point dose measurements with different detector types
- “Plug and Measure” convenience using detector holders – no need to replace phantom or exchange inserts
- Dose verification of non-coplanar treatment plans
"Detector" insert
Detector holder
RUBY with "Detector" insert
System QA
Perform integrated tests of the entire treatment chain from imaging to treatment planning and verification with one basic phantom. Add and expand QA capabilities when needed.
As the new modular phantom platform for radiotherapy QA, RUBY comes with a variety of exchangeable, application-specific inserts that satisfy all test requirements in a modern treatment facility.
RUBY Base Phantom
Choose the “System QA” insert for comprehensive end-to-end testing with one single insert.
Key Features
- MRI visibility in all commonly used sequences (T1, T2 and FLAIR at 1.5 T) – no additional components required
- ICRU-based tissue-equivalent materials (brain, lung, bone) for verification of dose calculations at different tissue densities
- CT and MRI cavities for accurate verification of the CT/MRI image fusion algorithm of treatment planning systems
- Point dose measurements with different detector types using the same insert
"System QA" insert
Select the “Detector” insert for measurement-based dose verification of patient treatment plans.
Key Features
- Fast, accurate point dose measurements with different detector types
- “Plug and Measure” convenience using detector holders – no need to replace phantom or exchange inserts
- Dose verification of non-coplanar treatment plans
"Detector" insert
RUBY Head Phantom
For couch extensions equipped with head shells. Compatible with all inserts containing CT markers that indicate the central position of the inserts.
"MultiMet" insert
System QA for the non-isocentric treatment of multiple metastases.
Key Features
- Dedicated to the verification of non-isocentric treatment techniques with or without couch rotation
- Enables the positioning of three detectors at different positions within the insert
- Detector positions simulate the locations of three brain metastases treated simultaneous using a single isocenter
- Three bone equivalent cylinders embedded to provide contrast for positioning using kV imaging systems
RUBY Head Phantom with "System QA MultiMet" insert
Detector holder
RUBY in Clinical Use
Explore how RUBY supports your QA needs.
Comprehensive end-to-end test for a non-coplanar treatment plan using RUBY phantom with SYSTEM QA insert
Compatible with patient positioning systems and patient masks
RUBY phantom with SYSTEM QA insert and SRS mask set up on CT couch
Treatment plan calculated on RUBY phantom with SYSTEM QA insert as shown in the treatment planning system. The different cavities (lung, brain, bone, MRI) are clearly visible on the image. CT markers in the base phantom and insert are well detected, allowing an accurate positioning of the isocenter.
Treatment plan calculated on RUBY phantom with SYSTEM QA insert as shown in Monaco treatment planning system.
Fusion of RUBY CT and MRI images as shown in the treatment planning system
(grey: CT / red: MRI)
Treatment plan calculated on RUBY phantom with System QA insert using RayStation treatment planning system
Fusion of RUBY CT and MRI images in RayStation treatment planning system
RUBY System QA insert contoured in Eclipse treatment planning system
HyperArc treatment plan calculated on CT dataset of RUBY phantom with System QA insert
RUBY phantom set up on Elekta Unity: Image registration during patient workflow in Monaco treatment planning system
Daily accuracy checks of couch shifts:
RUBY with LINAC QA insert and tilting base set up on patient couch with defined offset (red line)
Fusion of RUBY CBCT and planning CT images (without tilting base): System detects misalignment.
Fusion of RUBY CBCT and planning CT images (with tilting base): System detects misalignment, including phantom tilt.
Fusion of RUBY DRR and portal (MV) images: The LINAC QA insert is clearly visible on the MV image. The DRR image can be fused with the MV image to detect alignment errors.
DRR generation using
RayStation treatment planning system
Table alignment checks using VARIAN OSMS:
Left: RUBY with LINAC QA insert is setup on patient couch with defined offset (grey line). Misalignment (translation) is detected by OSMS.
Right: RUBY after CBCT imaging and needed table shift –
phantom position matches reference data set.
Table alignment checks using VARIAN OSMS:
Left: RUBY with LINAC QA insert and tiling base is set up on patient couch with defined offset (red line). Misalignment (translation/rotation) is detected by OSMS.
Right: RUBY after CBCT imaging and needed table shift and rotation –
phantom position matches reference data set.
Alignment errors detected using CBCT images generated by VARIAN TrueBeam system
Alignment errors detected using kV images generated by VARIAN TrueBeam system
Alignment errors detected using MV images (EPID) generated by VARIAN TrueBeam system
Treatment plan calculated on RUBY phantom with PATIENT QA Detector insert as shown in the treatment planning system. The CT markers are clearly visible, allowing an accurate positioning of the isocenter.
Single-point dose verification of a non-coplanar patient treatment plan using a detector. Detector is plugged into RUBY PATIENT QA Detector insert using the appropriate detector holder – no need to replace phantom or exchange inserts.
Webinar "RUBY – Head phantom and MultiMet insert"
- RUBY in the clinical routine
- Head phantom for phantom positioning in head shells and patient mask systems
- Head phantom and MultiMet insert
