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Abstract #1854

Scan time reduction in DWI of the pancreas using simultaneous multislice technique with different acceleration factors: how fast can we go?

Jana Taron1, Petros Martirosian2, Thomas Kuestner3, Mike Notohamiprodjo1, Jakob Weiss1, Ahmed Othman1, Konstantin Nikolaou1, and Christina Schraml1

1Department of of Diagnostic and Interventional Radiology, University Hospital of Tuebingen, Tuebingen, Germany, 2Section on Experimental Radiology, Department of Diagnostic and Interventional Radiology, University Hospital of Tuebingen, Tuebingen, Germany, 3Institute of Signal Processing and System Theory, University of Stuttgart, Stuttgart, Germany

We investigated the feasibility of simultaneous multislice-accelerated diffusion-weighted imaging of the pancreas using an acceleration factor of 2 and 3 (sms2/sms3-DWI) and its influence on image quality, acquisition time and apparent diffusion coefficients in comparison to conventional sequences (c-DWI) in ten healthy volunteers and 20 patients at 1.5 T. Images recorded with sms2-DWI offered high quality with a scan time reduction to one third; sms3-DWI showed significantly poorer overall image quality. In conclusion, sms2-DWI is feasible in clinical routine providing high image quality and a substantial reduction of acquisition time, whereas the use of higher acceleration factors is currently not recommended.

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