Xi Peng1, Shanshan Wang1, Qingyong Zhu1, and Dong Liang1
In various MR applications, a pre-scan is
usually practicable that extra morphology information
can be
extracted from the reference image. However, with a reference image obtained from
a different contrast mechanism, the signal variation in the reference may
differ from that in the target image. In this work, we propose to exploit gradient orientation information, which is closely related to the anatomical structures
but less dependent on the image contrast, to enable superior CS-based reconstruction. The
proposed method was validated using multi-scan
experiment data and is shown to provide high speed and high quality imaging.
