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Abstract #2969

Compressed Sensing and Parallel Imaging (CS-PI) Reconstruction of Prospectively Undersampled Dynamic MRI for Faster Imaging of Bowel Motility

Abdallah G. Motaal1, Catharina S. de Jonge1, Wouter V. Potters1, Bram F. Coolen1, Aart J. Nederveen1, and Jaap Stoker1

1Radiology Department, 3T Lab, Academic Medical Center, Amsterdam, Netherlands

Motility assessment of the small bowel using dynamic MRI can only be acquired with either a limited coverage of the intestines or relatively low temporal resolution, which obscures details of motion during contraction and relaxation. Compressed sensing and parallel imaging (CS-PI) techniques allow higher temporal resolution imaging by acquiring and reconstructing undersampled acquisitions. In this abstract we show that by using CS-PI, accelerations up to 7X could be achieved, which outperforms conventional approaches based on parallel imaging only. As a consequence, CS-PI provides a valuable tool for improved assessment of small bowel motility.

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