Zhitao Li1,2, John M Pauly2, and Shreyas Vasanawala1
1Department of Radiology, Stanford University, Palo Alto, CA, United States, 2Electrical Engineering, Stanford University, Palo Alto, CA, United States
1Department of Radiology, Stanford University, Palo Alto, CA, United States, 2Electrical Engineering, Stanford University, Palo Alto, CA, United States
A radial IR-SPGR pulse sequence with a bipolar readout is proposed for rapid fat/water separated T1 and PDFF mapping. High resolution, high SNR T1 and PDFF maps for multiple slices can be acquired in a breath-hold at a rate of 2.5 seconds/slice.
Figure 3. T1 maps from a breath-hold study on a NAFLD patient are presented. The first row shows the T1 maps from the composite reconstruction, the second and third rows show the T1 maps from the proposed fat/water separated T1 reconstruction.
Figure 4. Comparison between the clinically available PDFF mapping sequence (IDEAL) and the proposed technique on a NAFLD patient. The first row shows the 3 slices generated from the proposed technique and the second row shows slices from an IDEAL scan at similar anatomical locations.