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Additional resources for A. V. Gulin (A tribute on the occasion of his 60th birthday)

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Simon, J. H. , Proton (fat/water) chemical shift imaging in medical magnetic resonance imaging: current status, Invest. , 27, 865, 1992. 67. Wedeen, V. , Chao, Y. , and Ackerman, J. , Dynamic range compression in MRI by means of a nonlinear gradient pulse, Magn. Reson. , 6, 287, 1988. 68. , Hunter, W. , Multisection fat-water imaging with chemical shift selective presaturation, Radiology, 164, 539, 1987. 69. Smith, D. K. , Water bags: an inexpensive method for improving fat suppression in MR imaging of the extremities (letter), AJR, 162, 1252, 1994.

A “spoiler” gradient is then applied to destroy the transverse magnetization of the excited spins (the fat protons). 61 Alternatively, the TR can be increased (with a concomitant increase in imaging time) to maintain the same number of slices. The penalty is less severe for FSE compared with conventional spin-echo imaging, since only one fat suppression pulse is needed for each echo train in FSE imaging. Because the difference in precessional frequencies between fat and water protons is slight, spectral fat suppression works best on relatively high-field systems, where the separation is more pronounced.

44. Klein, M. , Reformatted three-dimensional Fourier transform gradient-recalled echo MR imaging of the ankle: spectrum of normal and abnormal findings, AJR, 161, 831, 1993. 45. Tsuruda, J. , Newton, T. , and Mills, D. , Three-dimensional gradientrecalled MR imaging as a screening tool for the diagnosis of cervical radiculopathy, AJNR, 10, 1263, 1989. 46. , and Seeger, L. 5 T, AJR, 158, 339, 1992. 47. Elster, A. , Gradient-echo MR imaging: techniques and acronyms, Radiology, 186, 1, 1993. 48. Petersein, J.

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