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Abstract #1283

Prospective Self-Gating For Cardio-Respiratory Synchronised Imaging in the Mouse.

Paul Kinchesh1, Boris Vojnovic1, Stuart Gilchrist1, Robert Newman1, and Sean Smart1

1Oxford Institute for Radiation Oncology, University of Oxford, Oxford, United Kingdom

Prospective cardio-respiratory self-gating is demonstrated in the mouse. A gradient echo scan operating at constant TR enabled acquisition of CINE data blocks or maintenance of the NMR steady state depending on the level of a gating control signal that was evaluated within each TR. A portion of the FID during each TR was submitted to a signal processor chain for streaming into a pseudo-continuous analogue cardio-respiratory signal trace and conversion to a series of logic control signals for gating.

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