Soudabeh Kargar1, Daiki Tamada1, Ruvini Navaratna1, Jayse Merle Weaver1, and Scott B Reeder1
1Radiology, University of Wisconsin - Madison, Madison, WI, United States
1Radiology, University of Wisconsin - Madison, Madison, WI, United States
In this work we propose, optimize and demonstrate the feasibility of a heavily T2 weighted imaging method based on RF phase modulated phase-based gradient echo MRI in combination with a novel cross-product strategy.
Fig. 5 Heavily T2-weighted fluid sensitive imaging of the brain shows good suppression of white and gray matter, with bright CSF in the subarachnoid space. Shown is A) the phase difference image, B) the magnitude of the RF phase modulated GRE image, and C) the cross product image that appears as a heavily T2-weighted image.
Fig. 2 The signal for two data sets $$$(-\Delta\phi$$$ and$$$+\Delta\phi)$$$ is shown in the complex plane for Bile ( in green) and Liver ( in red) tissue. $$$\theta_{BG}$$$ is the background phase. The cross product of the two vectors that have a smaller angle ( $$$S_{Liver}$$$ and $$$S_{-Liver}$$$) will be smaller than the bile $$$S_{Bile}$$$ and $$$S_{-Bile}$$$.