Could technology currently used for detailed examination of the human body be the solution for screening passengers and their bagage in the future?
Airport screening involves an X-ray-based baggage screening solution, which is independent of the person. The person is simply scanned for the presence of metallic objects, and sometimes a secondary scan for specific chemicals is performed. Irrespective of the secondary scan, the baggage has to be removed from the person due to X-ray exposure. The result is a two tier screen; one of the baggage and one of the person, the former of which is more detailed than the latter. Ultra- low field MR is not restricted by exposure limits, therefore the person and baggage could be scanned together. MR-based airport screening of people and baggage, using one technology – and one machine - to simultaneously
screen both to a similar degree, has the potential to provide a simple solution to an otherwise complex problem.
The
identification of metallic objects present on a person and localised using a metallic wand is eliminated, the need for an operator to visually check images and see how they match to database information is no longer needed, and the need for the secondary scan for chemicals using portable devices reduces as well. Therefore, most vagaries of human performance are eliminated. From a practical point-of-view, a number of challenges need to be
overcome for the ultra-low field MR technology to be viable as a tool for airport screening of people and baggage. Detector technology and shielding of external field influences has to be improved along with data acquisition methods enabling fast scan times. Nonetheless, ultra-low field MR is real, it is here now, and it can potentially overcome existing limitations encountered in airport screening.
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Adrian Boadbent T +34 918 042 577 E
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MRI Scan
In 1999, Viktor Vegh received a Bachelor of Applied Science degree in Mathematics with Honours from the Queensland University of Technology, Brisbane, Australia.
In 2003 he was awarded a PhD
from the same University in the field of Applied and Computational Mathematics, while holding a position as an Associate Lecturer.
In
early 2004 he was appointed as a full- time post-doctoral research fellow in the Centre for Magnetic Resonance (CMR) at the University of Queensland, Brisbane, Australia. In 2010, CMR was amalgamated under the Centre for Advanced Imaging. As a research fellow in the new Centre, Dr Vegh continually researches in the field of magnetic resonance technology with a focus on ultra-high and ultra-low field MRI hardware and instrumentation, and associated techniques of improving image signal-to-noise ratio.
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