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Abstract #4260

Quiet short echo time gradient echo MRI

Martin Ott 1 , Felix Breuer 1 , David Grodzki 2 , Martin Blaimer 1 , Simon Triphan 1,3 , and Peter Jakob 1,4

1 MRB Forschungszentrum fr Magnet-Resonanz-Bayern e.V., Wrzburg, Bavaria, Germany, 2 Siemens AG, Erlangen, Bavaria, Germany, 3 Diagnostic and Interventional Radiology, University Hospital Heidelberg, Heidelberg, Germany, 4 Department of Experimental Physics 5, University of Wuerzburg, Wrzburg, Germany

In this work, the acoustic-noise of gradient echo (GRE) sequences is addressed. Thin slice thicknesses or short echo times usually require fast switching gradients which lead to high acoustic-noise levels. The focus is on acoustic-noise reduction of the data acquisition for images with these boundary conditions. Therefore, a prototype sequence is implemented which makes use of half pulse excitations as well as a novel k-space sampling scheme. First in-vivo results are presented as well as a significant reduction of acoustic-noise.

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