Abstract #1730
Improved contrast in multi-echo susceptibility-weighted imaging by using a non-linear echo combination
Zhaolin Chen 1 , Guillaume Gilbert 2 , and Miha Fuderer 1
1
Clinical Excellence and Research, R&D,
Philips Healthcare, Best, Noord-Brabant, Netherlands,
2
MR
Clinical Science, Philips Healthcare, Montreal, Canada
In this work, a non-linear echo combination approach is
introduced to optimize susceptibility contrast in
multi-echo SWI. A voxel-wise non-linear combination of
magnitude images is introduced prior to calculating SW
images. The analytical SNR and CNR of the proposed
echo-combination approach are derived and are used to
compare the proposed multi-echo approach with the
existing single-echo and multi-echo approaches. As shown
both experimentally and analytically, the proposed
approach provides enhanced susceptibility contrast
compared with previous single-echo and multi-echo
approaches.
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