Stefan Weick1,
Philipp Ehses2, Martin Blaimer2, F. A. Breuer2,
P. M. Jakob1,2
1Department of Experimental Physics 5,
University of Wuerzburg, Wuerzburg, Bavaria, Germany; 2Research
Center for Magnetic Resonance Bavaria (MRB)
In
this work, 3D Flash examinations of the human lung were performed during free
respiration using the DC signal for self-gating. Short echo times (TE) are
required to provide sufficiently SNR because of the short T2* of the lung
tissue. It is shown that the DC signal can be acquired after the actual
imaging module still providing enough quality for respiratory gating and
simultaneously providing very short echo times. The maxima and minima of the
DC signal were used to define threshold values for data rejection and high
resolution images were reconstructed retrospectively.
Keywords