Towards More Environmentally Sustainable Medical Imaging Physics: Survey-Based Insight and Resource Gaps
Abstract
Purpose
To survey current clinical practice, assess priorities, and identify resource gaps related to environmental sustainability in medical imaging physics.
Methods
A 63-question survey was distributed via the diagnostic physics listserv, direct email, and LinkedIn. De-identified survey respondents provided their age, role, and work environment. The survey assessed current institutional practices related to imaging equipment energy monitoring, off-hours power management, CT and MRI contrast administration, and education on environmental sustainability in imaging physics. Respondents were also asked their opinions on the potential for imaging departments to reduce environmental impact and the strategies most likely to have the greatest impact.
Results
A total of 61 valid responses from clinical practice were received from October through December 2025. Fifty-six respondents were imaging physicists (92%) and of these physicists, 80% reported working in the clinic with the rest in research. Ten percent (6 respondents) reported that imaging equipment was monitored for energy consumption at their institution. MRI and CT were the most likely modalities to be put into low power/sleep mode during non-clinic hours (23% and 17.5%, respectively). Though, for almost all modalities, the most common response was unsure or NA (34%-59%). Twenty percent reported using weight-based CT contrast dosing all the time, and 31% reported the same for MRI. The majority were unsure of their institution’s use of multi-use contrast vials or syringeless injectors (59% CT, 56% MRI). Only three respondents received training on sustainable practices from their institutions, but 83% had interest in receiving additional education.
Conclusion
There was some adoption of sustainable practices in imaging physics. However, most respondents were unsure if environmental sustainability practices have been adopted in their institutions. Very few have received training in this topic, though a majority are interested in learning more.