Daiki Tamada1 and Scott B. Reeder1,2,3,4,5
1Radiology, University of Wisconsin-Madison, Madison, WI, United States, 2Medical Physics, University of Wisconsin-Madison, Madison, WI, United States, 3Biomedical Engineering, University of Wisconsin-Madison, Madison, WI, United States, 4Medicine, University of Wisconsin-Madison, Madison, WI, United States, 5Emergency Medicine, University of Wisconsin-Madison, Madison, WI, United States
1Radiology, University of Wisconsin-Madison, Madison, WI, United States, 2Medical Physics, University of Wisconsin-Madison, Madison, WI, United States, 3Biomedical Engineering, University of Wisconsin-Madison, Madison, WI, United States, 4Medicine, University of Wisconsin-Madison, Madison, WI, United States, 5Emergency Medicine, University of Wisconsin-Madison, Madison, WI, United States
A novel method for simultaneous T1 and T2-weighted imaging using RF
phase-modulated GRE with small RF phase increments is presented. Phantom and in vivo experiments suggested the proposed method enables faster imaging
compared to conventional FSE imaging.
Figure
1 Proposed
reconstruction scheme used in this study. To remove the background phase, two
acquisitions with opposite RF phase increments are acquired. T1w and T2w images
were calculated through the addition and subtraction of these images.
Figure
4 T1w and T2w
images produced using the proposed method, compared with T1w and T2w FSE. Both
images using the proposed method showed similar contrast to those using FSE
imaging. The proposed method exhibited slightly weaker gray-white matter T1w
contrast and slightly weaker T2w contrast in the basal ganglia. Mild flow-related
artifacts were also observed in the CSF (arrow). Scan time for the proposed
method was 1:02 min, compared to 2:23 min for T1w and T2w FSE.
