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Abstract #2506

Compressed sensing accelerated broadband 3D phase encoded turbo spin-echo imaging for geometrically undistorted imaging in the presence of field inhomogeneities

Jetse van Gorp 1 , Chris Bakker 1,2 , Job Bouwman 1 , Jouke Smink 3 , Frank Zijlstra 1 , and Peter Seevinck 1

1 Image Sciences Institute, University Medical Center Utrecht, Utrecht, Utrecht, Netherlands, 2 Department of Radiology, University Medical Center Utrecht, Utrecht, Utrecht, Netherlands, 3 Philips, Best, Noord-Brabant, Netherlands

In this work a compressed sensing (CS) accelerated 3D phase encoded turbo-spin echo (3D-PE-TSE) sequence was used to obtain geometrically undistorted images in the presence of titanium in a clinically acceptable time frame (<10min). By ordering the acquired echos in spherical layers with an equal number of sampling points it was possible to combine TSE and CS acceleration to achieve a factor 60 scan time acceleration compared to a 3D-PE-SE scan. Phantom and in vivo results confirm that the presented method can be used for investigations where spatial accuracy is required.

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