Model-free spatial intensity non-uniformity correction algorithm for MR images

MRI images can contain intensity inhomogeneity in space because of various reasons. Recent progress in MRI technologies such as multi reception/transmission of RF and ultra-high-field MRI systems has made this problem even more serious. Although many types of algorithms have been proposed and evaluated to deal with the problem, so far there has been no perfect solution. We developed a robust algorithm to correct intensity inhomogeneity of MRI signals without relying on additional scans. It was demonstrated that our newly proposed algorithm is very robust and corrects MRI images with inhomogeneous intensity satisfactorily.

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