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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