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Abstract #4982

Dynamic MRI For Bowel Motility Imaging – How Fast And How Long?

C.S. de Jonge1, R.M. Gollifer2, A.J. Nederveen1, D. Atkinson2, S.A. Taylor2, J. Stoker1, and A. Menys2

1Department of Radiology, Academic Medical Center (AMC), Amsterdam, Netherlands, 2Centre for Medical Imaging, University College London (UCL), London, United Kingdom

Dynamic (cine) MRI of bowel motility is now routinely performed in clinical practice and advances in post-processing have enabled robust quantitation of this data facilitating numerous research applications. Generally, motility sequences are acquired in a 20 second breath hold at a temporal resolution of 1 fps. In this study, we investigate these core assumptions and provide guidance information for future studies. In summary, we show that a temporal resolution of at least 1 fps is necessary for a scan duration of at least 10 seconds. This is consistent with the majority of small bowel motility studies to date.

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