Huajun She1, RongRong Chen1, Dong
Liang2, Yuchou Chang2, Leslie Ying2
1Department of Electrical and Computer
Engineering, University of Utah, Salt Lake City, UT, United States; 2Department
of Electrical Engineering and Computer Science, University of
Wisconsin-Milwaukee, Milwaukee, WI, United States
In
this abstract we consider image reconstruction from multichannel phased array
MRI data without prior knowledge of the coil sensitivity functions. A new
framework based on multichannel blind deconvolution (MBD) is developed for
joint estimation of the image function and the sensitivity functions in
k-space. By exploiting the smoothness of the image and sensitivity functions
in the spatial domain, we develop a regularized MBD method to obtain both the
image function and sensitivity functions. Simulation and in vivo experimental
results demonstrate that the proposed method reconstructs images with more
uniform intensity than the SoS method does.
Keywords