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The coils need to be cooled to -460 °F in order to get good quality images.
To achieve the same result without helium, Hallmarq’s new MRI uses a conduction-based cooling system in a strong vacuum, which eliminates the need for helium, a quench pipe, oxygen monitor, or any additional power.
This, Hallmarq says, makes the new system more environmentally friendly than its helium-based counterparts and reduces the upfront and ongoing costs of offering a veterinary MRI service to patients.
The new technology comes in response to growing concerns over helium supply.
Extraction and usage of helium is quickly outpacing its natural synthesis, as a result of which, Hallmarq says helium prices have soared from £12.75 per litre in December of 2017 to between £50 and £55 per litre in June 2022.
For veterinary hospitals already using high-field MRI machines, or for those considering them in the future, reliance on the 1,500-2,200 litres of helium required to keep a standard MRI functioning may not be sustainable.
Hallmarq’s Chief Technology Officer Dr. Steve Roberts said: “Hallmarq’s Zero-Helium Small Animal 1.5T MRI system increases access to diagnostic care for small animal patients, while lessening the financial, environmental and supply chain risks associated with traditional helium-based MRI systems."
www.hallmarq.net.
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This will be the future of MRI whether for veterinary or human patients. All the leading MRI producers in the human market are now bringing out zero helium high field MRI scanners.