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Men's Weekly

CT scanners secretly waste more energy than used by a typical household – but there’s a fix

  • Written by Katy Bell, Professor of Clinical Epidemiology, Sydney School of Public Health, University of Sydney
CT scanners secretly waste more energy than used by a typical household – but there’s a fixAnnaStills/Getty Images

Medical imaging is one of the biggest contributors of a hospital’s energy use. Magnetic resonance imaging (MRI) and computed tomography (CT) are particularly carbon intensive, partly due to their need to be constantly cooled. Hospital staff typically leave these machines running 24/7 because they’re often needed...

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