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Design and construction of a magnetic resonance compatible multi-injector gas jet delivery system


David Megias-Alguacil, T. Keller, Kai Lutz, Ashley P. Barlow, Dominik A. Ettlin

Review of Scientific Instruments, vol. 79, no. 1, pp. in press

We present the design, construction and performance of a novel multi-injector gas jet delivery capable of operating in a magnetic resonance imaging environment. This apparatus is computer controlled and built with two separate pneumatic circuits enabling gas jet applications at variable sites through four independently activated injectors. Gas jet delivery is fully controllable in terms of pressure, flow-rate, gas temperature, application time and duration of inter-stimulus interval. We characterized these parameters, considering effects like pressure drop by flow transport, transient effects and delays in activation. The system offers new possibilities for use in various biomedical contexts such as e.g. quantitative sensory testing or dental hypersensitivity assessment.

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% Autogenerated BibTeX entry
@Article { MegEtal:2008:IFA_3013,
    author={David Megias-Alguacil and T. Keller and Kai Lutz and Ashley P.
	  Barlow and Dominik A. Ettlin},
    title={{Design and construction of a magnetic resonance compatible
	  multi-injector gas jet delivery system}},
    journal={Review of Scientific Instruments},
    pages={in press},
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