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  • Science
  • Quantitative Imaging Biomarkers Alliance® (QIBA®)

  • QIBA LogoRSNA organized the Quantitative Imaging Biomarkers Alliance (QIBA) in 2007 to unite researchers, healthcare professionals, and the industry to advance quantitative imaging and the use of imaging biomarkers in clinical trials and clinical practice. The Society is committed to transforming patient care by making radiology a more quantitative science.

    The initiative includes:

    • Collaboration to identify needs, barriers and solutions to create consistent, reliable, valid and achievable quantitative imaging results across imaging platforms, clinical sites, and time.
    • Accelerating development and adoption of hardware and software standards to achieve accurate and reproducible quantitative results from imaging methods.


    QIBA Projects and activities have been funded in whole or in part with Federal funds from the National Institute of Biomedical Imaging and Bioengineering, National Institutes of Health, Department of Health and Human Services, under Contract Nos. HHSN268201000050C, HHSN268201300071C and HHSN268201500021C.


    What is Quantitative Imaging?

    Quantitative imaging is the extraction of quantifiable features from medical images for the assessment of normal or the severity, degree of change, or status of a disease, injury, or chronic condition relative to normal.

    Quantitative imaging develops, standardizes, and optimizes:

    • Anatomical, functional, and molecular imaging acquisition protocols
    • Data analyses
    • Display methods
    • Reporting structures

    These features permit the validation of accurately and precisely obtained image-derived metrics with anatomically and physiologically relevant parameters, including treatment response and outcome, and the use of such metrics in research and patient care.

    QIBA Mission

    QIBA seeks to improve the value and practicality of quantitative imaging biomarkers by reducing variability across devices, sites, patients, and time.

    QIBA Organization

    RSNA’s QIBA initiative has advanced through the generous commitment of volunteer committee members from academia, medical device, pharmaceutical and other business sectors, and government.

    There are four modality-based Coordinating Committees, including Q-CT, Q-MR, Q-NM, and Q-US. Nineteen Biomarker Committees include:

    • CT
      • CT Angiography
      • CT Volumetry
      • Lung Density
      • Small Lung Nodule
    • MR
      • Arterial Spin Labeling (ASL)
      • Dynamic Contrast-Enhanced (DCE) MRI 
      • Dynamic Susceptibility Contrast (DSC) MRI
      • Diffusion Weighted Imaging (DWI) MRI
      • Functional Magnetic Resonance Imaging (fMRI)
      • Magnetic Resonance Elastography (MRE)
      • Proton Density Fat Fraction (PDFF)
      • Musculoskeletal (MSK)
    • NM
      • FDG-PET/CT
      • Quantifying Dopamine Transporters with 123Iodine Labeled Ioflupane in Neurodegenerative Diseases (I-123)
      • PET-Amyloid
      • Technetium-99m for body, oncology and immunology (TC99m)
    • US
      • Contrast Enhanced Ultrasound (CEUS)
      • Ultrasound Shear Wave Speed (SWS)
      • Ultrasound Volume Blood Flow (VBF)

     Each committee has specific responsibilities for its respective modalities or disease-based approach, and is open to interested persons.

    Click here to see the QIBA Organizational Chart

  • QIBA Resources

  • QIBA Profiles and Protocols »

    Learn about Profiles and Protocols currently being developed by QIBA biomarker committees.


    QIBA Conformance Certification Services »

    Access services that allow clinical sites, scanner vendors, and analysis software vendors to verify conformance with QIBA Profile specifications.


    QIBA Process »

    Understand the defined process for developing and adopting standards-based biomarkers.


    QIBA Wiki »

    Access the QIBA Wiki to collaborate on materials and ongoing QIBA activities.


    QIBA Newsletters »

    Read articles and updates from biomarker committees and discover opportunities to get involved.


    QIBA Metrology Papers »

    Learn about efforts to establish uniform terminology and methodology guidelines for research use and clinical practice.


    RSNA and QIBA Annual Meetings »

    Review agendas and presentations from RSNA and QIBA working meetings, and find upcoming dates.


    Quantitative Imaging Data Warehouse »

    The QIDW is an open-source image archive, containing images and metadata collected across the MR, CT, NM and US modalities for testing, calibration and performance evaluation of scanners, workstations and software packages.