Publication Type	Academic Article
Authors	Chen Q, Schneider E, Aghazadeh B, Weinhous M, Humm J, Ballon D
Journal	Med Phys
Volume	26
Issue	11
Pagination	2341-7
Date Published	11/01/1999
ISSN	0094-2405
Keywords	Adipose Tissue, Image Enhancement, Magnetic Resonance Imaging, Water
Abstract	An iterative, outlier exclusion, second-order surface fitting algorithm has been developed to solve the well-known phase wraparound problem associated with in vivo applications of the three-point Dixon magnetic resonance imaging method. The technique was optimized for speed by reducing the problem to a pair of planar fits. The spatial misalignment between water and fat components due to the chemical shift was handled on a subpixel level by invoking the shift theorem of Fourier transformation. From the chemical shift corrected water and fat images, high quality recombined MR images were generated. The algorithm was validated in both phantom and patient studies. In vivo breast images and pelvic images are provided as a demonstration of the method.
DOI	10.1118/1.598748
PubMed ID	10587215