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MRI in RT – a new vision for radiotherapy

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What does this mean?

    Realizing the benefits of MRI in the radiotherapy workflow


    Despite MRI’s potential for radiotherapy, integrating the modality into the workflow can present challenges – specifically the novelty of a changed workflow and adjusting to the unique requirements for MRI use in radiation therapy versus as a diagnostic modality only .


    Whether you are looking for  a dedicated system in the RT department or for a shared service with radiology, Philips is committed to facilitating the integration of MRI and to helping you realize the benefits of MRI in radiation therapy.

    MRI in the radiotherapy workflow
    Learn how successful implementation of MRI in radiotherapy workflows can open new treatment pathways for patients.

    Discover the benefits of MRI for radiotherapy


    With its exceptional soft-tissue visualization capabilities and wide range of image contrasts, MRI has become a powerful tool to help more precisely define tumor boundaries. This is particularly important as it has been established that there is a high degree of uncertainty in target volume delineation, and it is even reported to represent the largest uncertainty in the entire radiotherapy process for most tumor sites**. Better visualization of the target area and nearby organs-at-risk is a key factor in enhancing target volume delineation. MRI’s expanding role also can be attributed to its functional imaging capabilities, which can inform both target characterization and treatment response.

    • Excellent soft-tissue contrast

      Excellent soft-tissue contrast

      With its superior soft tissue contrast compared to CT, MRI offers exquisite visualization of tumor boundaries and proximity to nearby critical structures.


      The ability to tune contrasts can provide even more valuable information about tumor characteristics and tumor extent to facilitate enhanced delineation, and also provides possibilities for dose boosting strategies.

    • Functional imaging

      Functional imaging

      In addition to anatomical imaging, MRI offers the ability to obtain functional information that is beneficial for tumor detection and delineation, and for response monitoring.


      Diffusion-weighted imaging (DWI) for example depicts areas of high signal intensity in soft tissues that are indicative of the restricted water mobility (i.e., diffusion) of a tumor and can also be used to identify lymph nodes. Changes in the tissue’s or lesion’s apparent diffusion coefficient (ADC) can provide insights that help predict the tumor’s response to radiotherapy.

    • No ionizing radiation

      No ionizing radiation
      Unlike CT, MRI images are created without using ionizing radiation. This is particularly important when the patients are children, in which exposure to a radiation dose should be minimized to reduce long-term secondary effects. The option to acquire multiple MRI exams paves the road towards “plan-of-the-day” approaches or monitoring treatment response for adaptive strategies.

    • Density information for dose calculation 

      Density information
      Innovative strategies in MRI-only simulation have made it possible to derive CT-like electron density information from MR imaging data. This capability enables physicians to use MRI as the radiotherapy department’s primary imaging modality for specific applications to eliminate tedious and error-prone CT-MR registration and simplify workflows.

    Streamline your integration of MRI in the RT workflow

    Ingenia MR-RT

    Ingenia MR-RT


    Ingenia MR-RT is a dedicated MR simulation platform that provides high quality, high contrast MR images acquired with the patient in treatment position. Designed for the needs of radiation oncology, this comprehensive solution provides the tools and software needed for versatile and efficient imaging for radiotherapy planning.
    Read more
    MR-only simulation

    MR-only simulation


    Innovative MR-only simulation helps you use MRI as the primary imaging modality for planning prostate cancer patients’ treatment, thereby eliminating tedious and error-prone CT-MR registration and simplifying workflows. Available as a plug-in extension to the Ingenia MR-RT platform, MR-only simulation provides high contrast anatomical MR images for target delineation and the density information for dose calculations typically provided by CT.
    Read more
    RTdrive MR prostate

    RTdrive MR prostate


    RTdrive is an automated workflow solution that streamlines the process from MR imaging to a high quality treatment plan with minimal user input, thus accelerating time to treatment and driving consistency. RTdrive accelerates and automates prostate planning workflows, enabling you to create a treatment plan within 25 minutes* from the start of MR simulation.
    Read more
    It is very good that we can collaborate with Philips to improve the knowledge on MRI in Radiotherapy in the radiotherapy community"

    Marielle Philippens, MD, PhD

    Associate Professor at University Medical Center Utrecht, The Netherlands.

    Learn from your peers and broaden your network


    Successful implementation of MRI in the RT department requires workflow modifications, comprehensive training and collaboration across departments. The volume of information and planning needed can be challenging. Fortunately, our active and engaged user community is committed to advance the use of MRI in radiotherapy. Learn from their insights on implementation and best practices.

    NetForum Community

    NetForum

    Visit our NetForum online community to learn from your peers around the world. Download imaging protocols and receive tips and tricks on implementing MRI in radiotherapy.
    Read more

    MR Body Map

    MR Body Map

    Explore clinical cases that demonstrate the use of MRI for RT planning.
     
    Read more
    Peer-to-peer training MRI in RT

    Peer-to-peer training MRI in RT


    An ideal opportunity for teams on the path to increase the level of MRI integration in their treatment planning workflows and who are seeking to deepen their knowledge and learn from best practices.


    The tailored training by our partnership hospital helps multi-disciplinary teams of radiation oncologists, medical physicists and radiotherapy technicians to successfully implement MRI for treatment planning.

    More information

    Read experiences on clinical implementation of MRI in Radiotherapy

    • Approaches for including MRI in radiation therapy planning

      Approaches for including MRI in radiation therapy planning


      Dr. Philippens at University Medical Center Utrecht relates her site’s experience integrating MRI into its RT planning workflow.
      Read more
    • 3D MRI-guided brachytherapy

      Cervical cancer treatment with 3D MRI-guided brachytherapy


      Arhus University Hospital at the forefront of MRI guidance in adaptive cervical cancer radiotherapy.
      Read more
    • Ingenia solution

      Ingenia solution enhances delineation for RT planning


      Beaumont Health System brought MRI into its routine RT practice by acquiring Ingenia 3.0T MR-RT.
      Read more
    • MRI and radiotherapy treatment at the same time

      MRI and radiotherapy treatment at the same time


      A fully integrated Elekta linear accelerator and 1.5T Philips MRI system usher in the clinical era of high field MR-guided radiotherapy.
      Read more
    • MR-only simulation in prostate cancer radiotherapy

      MR-only simulation in prostate cancer radiotherapy


      Clinicians at Finland’s Turku University Hospital have streamlined their workflow for prostate cancer radiotherapy with MR-only simulation.
      Read more
    The confident path to treatment

    The confident path to treatment


    Philips offers a proven portfolio of dedicated radiotherapy solutions that span diagnostic imaging to treatment planning. By integrating tools, systems, and software – we help you to improve patient care, accelerate time to treatment and enhance patient satisfaction, while maximizing the value of your investment.

     

    Together with Philips, you can make your workflow simple, fast, and precise from start to finish. And be certain you can deliver consistent treatment results.

    Read more

    Resources

    Newest Innovations

    Newest Innovations

    RTdrive
    MR only simulation
    products

    Products

    Ingenia MR-RT
    MR only simulation
    RTdrive
    Pinnacle3 Auto-Planning
    Testimonials

    Testimonials

    Future of Radiotherapy
    MR-only simulation
    Technical solutions

    Technical solutions

    Training & Services
    Implementation
    Netforum
    White papers

    White papers

    MR-only simulation integration
    MRCAT decommissioning
    FieldStrength articles

    FieldStrength articles

    MRI in Radiotherapy workflows
    3DMRI guided brachytherapy
    MRI and Radiotherapy treatment
    Delination for RT planning
    MRI only in prostate cancer RT
    *  Tested in a non-clinical environment with single Pinnacle3 user and a 5-beam IMRT plan. Excluding time for optional manual adjustments.
    ** Njeh, J Med Phys. 2008, 33(4). Segedin et al., Radiol. Oncol. 2016, 50(3).

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