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MR-Guided Radiotherapy

Which detector is best suited for reference and relative dose measurements in 1.5 T magnetic fields? Which clinically proven tools are available for routine QC measurements? Which water phantom can be safely used on MR-LINACs? How can I perform 3D patient QA with an 1.5 T MR Linac? Discover PTW’s newest technologies and how they support your dosimetry needs for next-generation MR-LINACs.

BEAMSCAN® MR

The first motorized 3D water phantom suitable for clinical use in a 1.5 T MR environment

Discover the all-in-one solution for MR-LINAC commissioning and QA with BEAMSCAN MR. Our system streamlines the process by integrating automatic beam data acquisition, processing, analysis, and protocol-based documentation. Designed to meet the highest standards of quality and technology, BEAMSCAN MR offers robustness, versatility, and ease of use. Experience the difference with BEAMSCAN MR.

Key Features

  • Dedicated 3D water phantom for use with MR-LINACs ( ≤ 1.5 T)
  • Two models with vendor-specific water tanks for optimized scanning ranges:
    568 mm x 145 mm x 355 mm for Elekta Unity,
    408 mm x 248 mm x 355 mm for ViewRay® MRIdian®
  • All-in-one, ready-to-use system with comfortable touch panel for fast setup
  • Auto alignment – no lasers or light field needed
  • Maximum speed of 30 mm/s for faster scanning
  • Reference-class Semiflex 3D ionization chambers for precise dose measurements in small and standard fields up to 40 cm x 40 cm
  • Quick axial and radial detector setup with patented TRUFIX®
  • Consistent detector orientation for all scans, including off-axis scans
  • Fast, sensitive electrometer with excellent signal-to-noise ratio for perfect scans in all field sizes
  • Straightforward operation – from setup to documentation
  • Fully integrated with Track-it for automated reporting

Case Study

Use of the BEAMSCAN MR Water Phantom for Commissioning and Quality Assurance of a ViewRay MRIdian Linear Accelerator

Learn from first-hand experience of Henry Ford Cancer Institute how the 3D water phantom BEAMSCAN MR delivered improved commissioning efficiency and accuracy.

Download case study

OCTAVIUS Detector
1500 MR and 1600 MR

Comprehensive patient QA for MR-LINACs

Experience the seamless integration of flat-panel ionization chamber arrays with OCTAVIUS 4D MR for efficient 3D patient-specific plan verification. Easy to set up on the treatment couch, these MR-conditional detectors are designed with a detector density and resolution that’s perfectly suited for the task, ensuring reliable and accurate dose measurements. Choose our solution for your MR-guided radiotherapy needs.

OCTAVIUS Detector MR Highlights

  • Flatpanel ionization chamber array
  • Filmless patient plan verification and machine-specific QA
  • Suitable for use with the OCTAVIUS I and II systems
  • Supported by the measurement and evaluation software programs VeriSoft and BeamAdjust
  • Fully integrated with Track-it for automated reporting

OCTAVIUS Detector 1500 MR Highlights

  • Outstanding detector and matrix design: 1405 vented cubic ion chambers
  • Active volume 4.4 x 4.4 x 3 mm3 per chamber
  • Detector spacing 7.1 mm center-to-center (diagonals)
  • Uniform field coverage in a 27 x 27 cm² matrix

    OCTAVIUS Detector 1600 MR Highlights

    • Detector array with 1521 liquid-filled ionization chambers
    • Active volume 2.5 x 2.5 x 0.5 mm³ per chamber
    • Detector spacing in central area: 2.5 mm
    • Best available field coverage for SRS applications with a field size of 15 x 15 cm²

    STARCHECK maxi MR

    Comprehensive machine QA for MR-LINACs with one single device

    Experience the efficiency and versatility of STARCHECK maxi MR, a flat-panel ionization chamber array that’s easy to set up on the treatment couch. With just one shot, it delivers all relevant beam data for radiation fields up to 40 cm x 40 cm. This eliminates the need for a 3D water phantom in daily routines or after service and repair. Choose STARCHECK maxi MR for a streamlined approach to radiation therapy.

     

    STARCHECK maxi MR

    • The only detector array to measure radiation fields up to 40 cm x 40 cm
    • Fast acquisition of all relevant beam parameters in one single measurement
    • Real-time display of beam profiles and analysis results for consistency checks and beam steering  
    • Highest spatial resolution (3 mm) for outstanding accuracy in all field regions,  including the penumbra
    • Optimal detector layout and density for QC measurements –
      707 air-vented ionization chambers arranged in a star pattern
    • Gold standard ionization chambers – no need for frequent recalibration
    • Expert analysis tools, e.g., profile comparison, protocol-based analysis, movie mode
    • Fully integrated with Track-it for automated reporting

    Semiflex 3D MR & PinPoint® 3D MR

    MR conditional chambers with optimized MR imaging features

    The MR detectors come with the same characteristics as the popular Semiflex 3D (T31021) and PinPoint 3D (T31022). These new versions are specifically designed for the usage with MR-LINACs such as Elekta UNITY and ViewRay MRIdian. Besides machine QA, these chambers can be used for End2End testing to check the gating algorithm of MR LINACs.

    Get More Information

    Brochure
    MR-RT Products ( 2 MB )
    Note
    BEAMSCAN MR with Halcyon Linac ( 2 MB )
    Catalog
    Detectors Catalog ( 9 MB )
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