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Abstract #3680

Prospective respiratory motion gating using a flexible external tracking device

Robin Simpson 1 , Benjamin Knowles 1 , Marius Menza 1 , Michael Herbst 1,2 , Cris Lovell-Smith 1 , Maxim Zaitsev 1 , and Bernd Jung 3

1 Medical Physics, University Medical Centre, Freiburg, Germany, 2 John A. Burns School of Medicine, Hawaii, United States, 3 University Hospital of Bern, Switzerland

Removing respiratory motion is an important challenge for cardiac MRI. This abstract presents initial work to apply a novel method of prospective respiratory gating using ShapeTape, a bend-sensitive optical-fibre-based motion detection system. Gating can be performed without interrupting imaging, and motion is sampled at high rates. This allows gating separately for each cardiac frame, improving image quality towards the end of the cardiac cycle.

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