Philipp
Ehses1,2, Vikas Gulani3, Stephen Yutzy3,
Nicole Seiberlich3, Peter Michael Jakob1,2, Mark A.
Griswold3
1Dept. of Experimental Physics 5,
Universitt Wrzburg, Wrzburg, Germany; 2Research Center Magnetic
Resonance Bavaria (MRB), , Wrzburg, Germany; 3Department of
Radiology, Case Western Reserve University and University Hospitals of
Cleveland, Cleveland, OH, United States
The
IR TrueFISP sequence has been shown to be a promising approach for the
simultaneous quantification of proton density, T1 and T2
maps. For accurate quantification, segmentation is usually necessary, leading
to an increase in scan time. In this work, a full set of parameter maps was
obtained in a single-shot by combining the IR TrueFISP sequence with a
golden-ratio based radial trajectory and using extensive view-sharing. The
effects of both magnetization transfer and the violated instantaneous RF
assumption on parameter quantification were further analyzed by prolonging
the RF pulses and TR (thereby reducing RF power and thus MT).
Keywords