Abstract #0105

Simultaneous 3D T1- and T2-weighted imaging using RF phase-modulated GRE with retrospective contrast adjustment

Daiki Tamada¹, Aaron S. Field^1,2, and Scott B. Reeder^1,2,3,4,5

¹Radiology, University of Wisconsin-Madison, Madison, WI, United States, ²Biomedical Engineering, University of Wisconsin-Madison, Madison, WI, United States, ³Medical Physics, University of Wisconsin-Madison, Madison, WI, United States, ⁴Emergency Medicine, University of Wisconsin-Madison, Madison, WI, United States, ⁵Medicine, University of Wisconsin-Madison, Madison, WI, United States

Synopsis

A novel method to obtain simultaneous 3D T1- and T2-weighted imaging with retrospective contrast adjustment was developed. Acquisitions are performed using a 3D RF phase-modulated GRE acquisition with a small RF phase increment. After phase correction, real and imaginary components are separated into T2- and T1-weighted images, respectively. Image contrast can also be modified by modulating additional phase into the signals retrospectively. Simulation and in vivo examples are shown. The results suggested the proposed method successfully provides arbitrary image contrasts with clinically acceptable quality and short acquisition time.

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