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@antjehellwich.bsky.social Sep 11, 2026, 8:08 AM

Proactive Ergonomic Design for Interventional MRI: Insights from Digital Human Modeling by Prof Steven Fischer, et al. (University of Waterloo, ON, Canada)

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#Ergonomics #OccupationalHealth #MRI #InterventionalMRI #InterventionalRadiology

While the clinical benefits of interventional MRI (iMRI) are well established, less attention has been paid to the physical and ergonomic demands placed on interventional radiologists who must work within the geometric constraints of MRI systems. Longer bore lengths, narrower access, and constrained reach conditions can require clinicians to adopt sustained, non-neutral postures that may elevate musculoskeletal loading over time.
The authors apply digital human modeling (DHM) techniques to quantify ergonomic exposures during simulated needle-insertion tasks performed in CT and MRI environments. By integrating live human motion-capture data with predictive biomechanical simulation, this study demonstrates how scanner geometry, specifically bore length, bore diameter, bore flaring, and table height, interact with clinician anthropometry to influence ergonomic demands on the body.
The findings show that ergonomic risk in iMRI is not inherent to MRI as a modality but rather is highly design dependent. Certain MRI configurations, particularly those incorporating flared bore entries and elevated table heights, can substantially reduce low-back loading compared with more conventional MRI designs.
The 100 cm flared bore geometry of the MAGNETOM Free.XL appears to have ergonomic advantages compared with conventional CT and conventional 70 cm bore MRI geometries. By embedding ergonomics upstream in scanner design and service planning, the field can move beyond reactive mitigation and toward proactive prevention to support the sustainable, human-centered growth of interventional MRI.

Special thanks to the co-authors: Justin Davidson, M.Sc., Ph.D.(c); Joshua Krieger, B.S.; Sean Chambers, Ph.D.; Jan Brandt, Ph.D.

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