The integration of MR imaging in radiation therapy facilitates real time motion management.
The CIRS Zeus MRgRT Motion Management QA phantom is designed to address such needs. Zeus is safe for use in an MR environment due to the use of piezoelectric motors and nonferromagnetic materials. The two piezoelectric motors move a cylindrical insert, which contain a tracking target, through a gel/ liquid fillable body by rotating it independently from the motion in the Inferior-Superior direction.
The moving insert contains an organic shaped target (tumor) filled with gel, which is surrounded by the same background gel used to fill the body. The body represents a heterogenous background due to simulated lungs, liver, kidney and spine. The simulated organs are anatomical in shape and have a life-like spatial relationship. They are filled with gels that provide contrast in CT and MR versus the background gel, which fills the void between the organs. Besides imaging, all organs, except for the lungs, offer ion chamber dosimetry cavities, which allow for completing an entire QA process; from imaging to planning to verification of dose delivered.
Zeus is designed as a single unit with a piezo actuator fixed permanently to a base plate on which the MRI body “snaps”. This allows for quick setup, removal, filling, and storage purposes. The phantom’s base plate has machined slots on the bottom, which allow for the use of indexing bars for precise and repeatable/reproducible phantom-MRI (MRI-Linac) alignment.
CIRS Motion Control software drives this phantom as well as the other phantoms from the CIRS dynamic family. In addition to multiple built-in motion profiles, which are more appropriate for commissioning and routine QA, the software allows for import of complex patient specific respiratory waveforms. These waveforms can be edited for amplitude, sample rate, cycle time, phase shift and baseline position. It also allows to setup independently controllable waveforms for linear and rotation motion of the insert. The Inferior-Superior motion of the insert/moving target can be gated based on amplitude to allow verification of beam latency. The motion controller box provides an interface (BNC physical input type) for the Beam-on Beam-off signal, which is read by the Motion Control software to calculate the Beam Latency specific to hybrid MRI-Linac systems.
Features:
Piezoelectric motors, non-ferromagnetic materials => Safe to use in an MR environment
Easy setup, removal, alignment, positioning
Organic shaped Organs at Risk and moving target
Can be imaged in MRI, CT, PET and hybrid systems
Ion chamber dosimetry in Liver, Kidney, Spine and moving target
3D tissue equivalent Spine for bone landmark
Two independently programmable motions for the moving target
Import, edit, and save patient specific breathing waveforms in addition to built-in QA waveforms
Calculate beam latency from beam-on, beam-off signal
NOTE: This product or an optional accessory of this product requires a CIRS dosimetry cavity code before an order can be placed.
The integration of MR imaging in radiation therapy facilitates real time motion management.
The CIRS Zeus MRgRT Motion Management QA phantom is designed to address such needs. Zeus is safe for use in an MR environment due to the use of piezoelectric motors and nonferromagnetic materials. The two piezoelectric motors move a cylindrical insert, which contain a tracking target, through a gel/ liquid fillable body by rotating it independently from the motion in the Inferior-Superior direction.
The moving insert contains an organic shaped target (tumor) filled with gel, which is surrounded by the same background gel used to fill the body. The body represents a heterogenous background due to simulated lungs, liver, kidney and spine. The simulated organs are anatomical in shape and have a life-like spatial relationship. They are filled with gels that provide contrast in CT and MR versus the background gel, which fills the void between the organs. Besides imaging, all organs, except for the lungs, offer ion chamber dosimetry cavities, which allow for completing an entire QA process; from imaging to planning to verification of dose delivered.
Zeus is designed as a single unit with a piezo actuator fixed permanently to a base plate on which the MRI body “snaps”. This allows for quick setup, removal, filling, and storage purposes. The phantom’s base plate has machined slots on the bottom, which allow for the use of indexing bars for precise and repeatable/reproducible phantom-MRI (MRI-Linac) alignment.
CIRS Motion Control software drives this phantom as well as the other phantoms from the CIRS dynamic family. In addition to multiple built-in motion profiles, which are more appropriate for commissioning and routine QA, the software allows for import of complex patient specific respiratory waveforms. These waveforms can be edited for amplitude, sample rate, cycle time, phase shift and baseline position. It also allows to setup independently controllable waveforms for linear and rotation motion of the insert. The Inferior-Superior motion of the insert/moving target can be gated based on amplitude to allow verification of beam latency. The motion controller box provides an interface (BNC physical input type) for the Beam-on Beam-off signal, which is read by the Motion Control software to calculate the Beam Latency specific to hybrid MRI-Linac systems.
Features:
Piezoelectric motors, non-ferromagnetic materials => Safe to use in an MR environment
Easy setup, removal, alignment, positioning
Organic shaped Organs at Risk and moving target
Can be imaged in MRI, CT, PET and hybrid systems
Ion chamber dosimetry in Liver, Kidney, Spine and moving target
3D tissue equivalent Spine for bone landmark
Two independently programmable motions for the moving target
Import, edit, and save patient specific breathing waveforms in addition to built-in QA waveforms
Calculate beam latency from beam-on, beam-off signal
NOTE: This product or an optional accessory of this product requires a CIRS dosimetry cavity code before an order can be placed.
The CIRS Dynamic Thorax Motion Phantom is a precision instrument for investigating and minimizing the impact of tumor motion inside the lung. It provides known, accurate and repeatable three-dimensional target motion inside a tissue-equivalent phantom. It is designed for comprehensive analysis of image acquisition, planning and dose delivery in image-guided radiation therapy.
The phantom body represents an average human thorax in shape, proportion and composition. A lung equivalent rod containing a spherical target and or various detectors is inserted into the lung equivalent lobe of the phantom. The body is connected to a motion actuator box that induces three-dimensional target motion through linear translation and rotation of the lung equivalent rod. The motion of the rod itself is radiographically invisible due to its matching density with the surrounding material. The target and its motion, given its density difference, can be resolved.
Target and surrogate motion are independently controlled with CIRS Motion Control Software. The graphical user interface provides an unlimited variety of motions while simplifying the operation of the Dynamic Thorax Motion Phantom to an intuitive level.
Features:
Complex 3D tumor motion within the lung
Sub-millimeter accuracy and reproducibility
Motion software enables different cycles, amplitudes and waveforms
Tissue equivalent from 50 keV to 125 MeV
Compatible with TLD, MOSFET, nanoDot TM, Dose Gel, microchamber, PET/CT targets and film
The CIRS Dynamic Platform provides an economical, user-friendly solution for the complex tasks associated with tumor motion and patient positioning in radiation therapy.
The platform is made from stiff, low-density plastics. The device enables precisely controlled inferior-superior motion up to 50 mm for any phantom up to 70 lbs. Multiple types of dosimeters and dosimeter arrays can be positioned on the platform and used for dose verification of moving target treatment plan. A removable pin system in the main platform allows consistent placement and fixation of almost any phantom and traditional laser alignment marks enable accurate positioning of the entire device. An independently controlled smaller platform provides posterior-anterior surrogate chest wall motion.
The CIRS Dynamic Platform is operated using CIRS Motion Control Software, a user-friendly graphical user interface that can be installed on any computer running Windows platform.
Features:
Move any phantom with sub-millimeter accuracy and reproducibility
Surrogate and phantom motion fully and independently programmable
Easy transport, set-up and operation
Motion software enables different cycles, amplitudes and waveforms
When using motion management techniques for delivery of radiotherapy, appropriate QA tools are needed to ensure safe and effective treatment. The Enhanced Dynamic Platform enables movement of compatible phantoms with sub-millimeter accuracy and reproducibility, easing QA and boosting clinical confidence for advanced tumor treatments.
The Enhanced Dynamic Platform builds upon the CIRS Dynamic Platform, with sub-millimeter accuracy for 3D Motion QA of systems that perform tumor tracking and gating. It allows for precisely controlled inferior-superior motion and features the ability to create an inclined plane for compatible phantom motion in the posterior-anterior direction.
Setup Options
Easily set up for 1D, 2D or 3D motion QA, including:
Inferior-superior motion up to +/- 25mm (50 mm total) for applicable phantoms up to 70 lb.
An 11.3° inclined plane provides +/- 5.0 mm (10 mm total) of motion in posterior-anterior direction (for applicable phantoms up to 50 lb.)
30° rotation about the linac couch provides +/- 12.5 mm (25 mm total) of lateral motion
The Enhanced Dynamic Platform integrates with the Sun Nuclear Tomo-Phantom HE (“Cheese Phantom”), supporting the Accuray acceptance tests procedure (ATP), as handled by the legacy Dynamic Platform.
CIRS Motion Control Software enables different cycles, amplitudes, and waveforms – as well as the import of patient-specific respiratory waveforms.
Quality Assurance and E2E Testing on CyberKnife® Systems
“Strict QA procedures for the imaging, planning and delivery of radiotherapy using respiratory management devices are required to ensure the safe and effective use of test devices.”
The CIRS Model 18023-A Xsight ® Lung Tracking “XLT” Phantom Kit has been verified and validated by Accuray for use with CyberKnife systems and both are designed to work in conjunction with the Synchrony System.
The XLT phantom body represents an average human thorax in shape, proportion and composition. It consists of a 3D anthropomorphic spine with cortical and trabecular bone, ribs, and lung lobes. One lung lobe accommodates a lung-equivalent rod containing a film cube with a spherical soft tissue target and dosimetric film. Anthropomorphic spine and ribs provide natural reference structures and challenges for tumor tracking and treatment.
The body is connected to a motion actuator box that induces three-dimensional target motion through linear translation and rotation of the lung-equivalent rod. Motion of the rod itself is radio- graphically invisible due to its matching density with the surrounding material. The target and its motion, given its density difference, can be resolved.
The phantom shares some components with the CIRS Model 008A Dynamic Thorax Phantom. As with the Model 008A, target and surrogate motion are independently controlled with CIRS Mo- tion Control Software. The graphical user interface provides an unlimited variety of motions while simplifying the operation of the XLT Phantom to an intuitive level. Patient specific profiles are easily imported and there is no need to make hardware adjustments or have special programming skills.
Key differences between the Model 18023-A and the CIRS Model 008A include the length of phantom body, location of the moving rod within the lung, and the inclusion of ribs.
Benefits:
Use Xsight ® Spine Tracking System for initial phantom alignment
Display detected respiratory motion of tissue-simulated torso, lung tumor, and critical structures with Synchrony System
Execute E2E software analysis of the films (without CT number adjustment)
Visualize 4D treatment optimization using the MultiPlan System
Xsight ® Lung Tracking Phantom
The XLT phantom body represents an average human thorax in shape, proportion and composition. Features:
3D anthropomorphic spine with cortical and trabecular bone, ribs, and lung lobes
Lung Ball Cube Rod with tumor-simulating target and radiochromic film
CIRS Motion Control Software enables true 3D target motion
Independently controlled surrogate and target motion
Xsight ® Lung Phantom Ball Cube Rod
The XLT phantom includes a single dosimeter rod made from lung equivalent epoxy (of respective densities). It contains a spherical target that accommodates two pre-cut Radiochromic® films, and is easily connected and aligned to the drive shaft.
Power:
110-250 VAC, 50/60 Hz
Amplitude, IS:
± 25 mm
Amplitude, AP/LR:
± 5 mm
Amplitude, Surrogate:
± 25 mm
Max. Surrogate Platform Load
5.4 kg
Motion Accuracy:
± 0.1 mm
Cycle Time:
1 - ∞ (adjusted based on amplitude)
Waveforms:
sin (t), 1-2cos4(t), 1-2cos6(t), sawtooth, sharkfin
Included XSight:
1x
XLT Torso (Phantom Length 18cm)
1x
Gating Device Assembly
1x
Motion Controller
1x
Base Plate
1x
Spacers for Phantom
1x
Actuator Assembly
1x
CIRS Motion Control Software (USB Key)
1x
XLT - Target Moving Rod
1x
XLT - Film Cube #3*
4x
Replacement Assembly Pins for Cube #3
2x
Screwdriver, 4 -in- 1
1x
Push Rod for ball cube
1x
Wrench, Hex, 3/32”
1x
Wrench, Hex, 5/64”
2x
2 amp fuses
1x
Extra fasteners (pack )
1x
XLT Kit Case (67 cm x 32 cm x 28 cm; 18.5 kg shipping weight)
Perform Compehensive Evaluation of Cardiac Imaging
The CIRS Dynamic Cardiac Phantom is a precision instrument that simulates the realistic motion of an average human heart. It provides known, accurate and repeatable 3D motion of a solid heart model inside the tissue-equivalent thorax phantom. The Model 008C-01 rod is designed as a comprehensive image analysis tool for calcification detection, iodine contrast resolution and ECG signal gating.
The phantom body represents an average human thorax in shape, proportion and composition. It contains a fully articulated spine, ribs and lungs. A tissue-equivalent rod containing a tissue-equivalent anthropomorphic solid heart is inserted into the mediastinum of a thorax phantom. The rod is split at an angle along the left coronary artery to provide access to replaceable targets. Linear attenuations of the simulated tissues are within 1% of actual attenuation for water and bone, and within 3% for lung from 50 keV to 15 MeV. The body is connected to a Motion Actuator box that induces three-dimensional heart motion through linear translation and rotation of the rod.
The movement of the rod is radiographically invisible due to its matching density to the surrounding material, but the movement of the heart and targets, given its density difference, is visible.
The cardiac phantom is constructed from the tissue equivalent thorax body, moving rod with the solid tissue equivalent heart inside, motion actuator, motion controller and CIRS Motion Control software. Features:
Anthropomorphic heart inside a thorax body
Tissue equivalent materials
Iodine contrast and calcification detection capabilities
Contrast target interchangeability
Complex heart motion combined with respiratory motion
Sub-millimeter accuracy and reproducibility
Motion software enables different cycles, amplitudes, and wave forms
All CIRS Dynamic Phantoms are operated using CIRS Motion Control Software Suite, a user-friendly graphical user interface that can be installed on any computer running Windows OS. Upon installation, the user has the option to select the phantom that is to be controlled by the software.
Amplitude, cycle time and phase shift can be applied to both surrogate and main phantom using slider bars or by entering desired values within the limits of the system. Five built-in waveforms are available from a standard pull down menu.
An unlimited number of clinically relevant patient specific waveforms or correlation models can be imported from tab delimited or comma separated file formats, including formats for all main brand name tracking devices available on the market.
The import function also allows for waveform editing, smoothing and analyzing tools to ease the optimization of custom waveforms. All motion files can be saved for future use.
The software provides convenient feedback through real-time graphic display with relevant information about the waveform selected for each direction of simulated tumor. In addition the ROI analyzing function provides the time spent by the target between two chosen amplitudes and the average time weighted position for that particular ROI.
Users can instantly start, stop or pause the motion at any time. New start positions can be graphically selected and applied making the device very useful for static test as well as dynamic testing. Users can also select the number of cycles to be looped by entering the desired value or choose continuous looping (up to 1 million cycles).
The Advanced Motion Parameters window contains a Research Mode that allows researchers to import 3D (x ,y ,z) recorded waveforms. Once the research mode is selected, the software automatically calculates the best scenario to simulate the real 3D waveform and the percentage coverage of the real volume by the simulated volume.
With select CIRS phantoms users can calculate beam latency for each breathing and as an average of all executed
