Convertible pneumatic actuator for magnetic resonance elastography of the brain |
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Authors: | Peter Latta Marco LH GruwelPatricia Debergue Brendon MatwiyUta N Sboto-Frankenstein Boguslaw Tomanek |
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Institution: | a Institute for Biodiagnostics, National Research Council of Canada, Winnipeg, Manitoba, Canada R3B 1Y6b Industrial Materials Institute, National Research Council of Canada, Boucherville, Quebec, Canada J4B 6Y4c Institute of Measurement Science, Slovak Academy of Sciences, Dúbravská cesta 9, SK-84219 Bratislava, Slovakia |
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Abstract: | Here we present a novel pneumatic actuator design for brain magnetic resonance elastography (MRE). Magnetic resonance elastography is a phase contrast technique capable of tracing strain wave propagation and utilizing this information for the calculation of mechanical properties of materials and living tissues. In MRE experiments, the acoustic waves are generated in a synchronized way with respect to image acquisition, using various types of mechanical actuators. The unique feature of the design is its simplicity and flexibility, which allows reconfiguration of the actuator for different applications ranging from in vivo brain MRE to experiments with phantoms. Phantom and in vivo data are presented to demonstrate actuator performance. |
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Keywords: | MR elastography Brain Pneumatic actuator |
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