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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