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Abstract #2117

Spatio-temporal analysis of antral peristaltic contractions using MRI

Eugene G. Kholmovski 1,2 , Layne Norlund 2 , Matthew Shonnard 3 , Hilary Riley 3 , and Grant W. Hennig 3

1 UCAIR, Department of Radiology, University of Utah, Salt Lake City, Utah, United States, 2 CARMA Center, University Of Utah, Salt Lake City, Utah, United States, 3 Department of Physiology & Cell Biology, University of Nevada, Reno, Nevada, United States

The use of MRI to study gastric motor function is limited and has mostly concentrated on quantifying volumes during gastric emptying [1]. Other important determinates of gastric motor function such as the velocity, frequency, and direction of antral peristaltic contractions have been more difficult to measure due to temporal undersampling and diaphragmatic distortion issues. We have developed MR image acquisition and data analysis methods to better ascertain how propagating antral contractions affect gastric emptying in health and disease.

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