Fusion of magnitude and phase images and its applications in ultra-short TE MR imaging

Phase information is often neglected in MR imaging except a few applications such as flow quantification and susceptibility-weighted imaging (SWI).SWI usually acquires gradient echo images with long TEs to create susceptibility weighed magnitude images and has found applications in mainly neuroimaging. More recently, phase contrasts have been reported in several ultra-short TE (UTE) imaging applications. It is demonstrated here that phase images obtained with ultra-short TEs provide useful contrasts in knee and lung imaging. A new approach for visualizing both the magnitude and phase information simultaneously without information loss is then presented to facilitate the assessment of tissue characteristics.

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