Abstract #3654
Chemical shift encoding-based water-fat imaging of skeletal muscle in the presence of fat resonance shift and phase errors
Stefan Ruschke 1 , Holger Eggers 2 , Hendrik Kooijman 3 , Pia M. Jungmann 1 , Axel Haase 4 , Ernst J. Rummeny 1 , Thomas Baum 1 , and Dimitrios C. Karampinos 1
1
Department of Diagnostic and Interventional
Radiology, Technische Universitt Mnchen, Munich,
Bayern, Germany,
2
Philips
Research, Hamburg, Hamburg, Germany,
3
Philips
Healthcare, Hamburg, Hamburg, Germany,
4
Zentralinstitut
fr Medizintechnik, Technische Universitt Mnchen,
Garching, Bayern, Germany
Chemical shift encoding-based water-fat imaging has been
emerging for quantifying skeletal muscle fat content. In
regions with low fat content, magnitude-based techniques
have been used to overcome the sensitivity of
complex-based techniques to phase errors. However,
magnitude-based techniques can become unstable for
certain combinations of echo times, when the chemical
shift separation between water and fat is not known,
e.g. due to the susceptibility-induced fat resonance
shift effects in skeletal muscle. The present study aims
to characterize complex-based and magnitude-based
methods for water-fat separation in skeletal muscle,
where both fat resonance shift and phase errors can be
present.
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