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Abstract #2736

High Resolution Single-Shot Diffusion Weighted Imaging with a Combination of Zoomed EPI and Parallel Imaging

Robin Martin Heidemann1, Thorsten Feiweier2, Alfred Anwander1, Fabrizio Fasano3,4, Josef Pfeuffer5, Robert Turner1

1Max Planck Institute for Human Cognitive and Brain Sciences, Leipzig, Germany; 2Siemens Healthcare Sector, Erlangen, Germany; 3Fondazione Santa Lucia, Rome, Italy; 4Siemens Medical Solutions, Milano, Italy; 5Siemens Medical Solutions, Charlestown, MA, USA

High resolution diffusion weighted imaging is affected by blurring due to T2* relaxation and distortions due to off-resonance effects. The use of parallel imaging can reduce those effects resulting in significantly improved image quality. However, parallel imaging is not without limitations and even with large phased arrays it is still a challenge to obtain high acceleration factors greater than four in a single dimension. The combination of a zoomed approach and parallel imaging can overcome this limitation enabling high resolution DW imaging with single-shot EPI.