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PubMed · 8231666

Respiratory triggered imaging with an optical displacement sensor.

S J Wilson·I M Brereton·P Hockings·W Roffmann·D M Doddrell
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Abstract

Motion of abdominal organs with respiration is a major problem in NMR spectroscopy and imaging thereof. Triggering each phase-encoding step with respiration or gating a number of phase-encoding steps is one approach to the problem. The design of a sensor for small animal experiments has not been as simple. An optical device, implemented with polymer optical fibres is described, along with associated hardware and electronics which can act as a trigger for small animal NMR experiments. A brief description of a similar device for human application is also given. 2DFT spin-echo and B0 susceptibility images, both triggered and untriggered, are presented to validate the technique.

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AbdomenAnimalsArtifactsMagnetic Resonance SpectroscopyMiceMotionOptical DevicesOptics and PhotonicsRatsRats, WistarRespirationJournal Article

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S J Wilson, I M Brereton, P Hockings, W Roffmann, D M Doddrell. 1993. Respiratory triggered imaging with an optical displacement sensor.. https://doi.org/10.1016/0730-725x(93)90221-x

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