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Abstract #3843

Small Field-of-view single-shot EPI-DWI of the prostate: Evaluation of spatially-tailored two-dimensional radiofrequency excitation pulses

Daniel Hausmann 1 , Nils Rathmann 1 , Metin Sertdemir 1 , Philipp Riffel 1 , Anja Weidner 1 , Stephan Kannengiesser 2 , John N. Morelli 3 , Stefan O. Schoenberg 1 , and Ulrike I. Attenberger 1

1 Institute of Clinical Radiology and Nuclear Medicine, University Medical Center Mannheim, Medical Faculty Mannheim, University of Heidelberg, Germany, Mannheim, Baden-Wrttemberg, Germany, 2 MR Applications Development, Siemens Healthcare, Erlangen, Germany, 3 Department of Radiology, St. Johns Medical Center, Tulsa, Oklahoma, United States

The use of spatially-tailored, two-dimensional radiofrequency (RF) excitation pulses in single-shot echo-planar imaging (EPI), combined with a decreased FOV in the phase-encoding direction, results in a reduced amount of k-space acquisition lines, which shortens the EPI echo train length (ETL) and reduces susceptibility artifacts without an increase in acquisition time. Zoomed EPI leads to significant improvements in image quality and artifacts as well as image blur reduction improving prostate DWI and enabling accurate fusion with conventional sequences.

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