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Abstract #2621

Application of compressed sensing in High Spectral and Spatial resolution (HiSS) MRI – evaluation of effective resolution

Milica Medved1, Marco Vicari2, and Gregory S Karczmar1
1Department of Radiology, The University of Chicago, Chicago, IL, United States, 2Fraunhofer MEVIS, Bremen, Germany

Compressed sensing (CS) was evaluated as an acceleration technique for high spectral and spatial resolution (HiSS) MRI, at acceleration factors up to R=10. Effective spatial resolution was maintained in the readout direction, and decreased with R in the phase encoding direction, although acceleration factors of up to R = 4 are realistic. Noise amplification was not observed. CS could improve diagnostic utility of HiSS MRI in breast by allowing longer echo trains and thus heavier T2* weighting in a fewer number of k-space lines. CS could also facilitate use of HiSS MRI in geometrically constrained applications, such as prostate MRI.

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