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Spatially Varying Fat-Water Excitation using Short 2DRF Pulses
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Institution: |
1Department of Diagnostic Radiology and Organ Imaging, The Chinese University of Hong Kong, Shatin, New Territories, Hong Kong. jyuan@cuhk.edu.hk 2Department of Radiology, Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts, USA |
Publisher: |
John Wiley & Sons, Inc. |
Publication Date: |
Apr-2010 |
Journal: |
Magn Reson Med |
Volume Number: |
63 |
Issue Number: |
4 |
Pages: |
1092-7 |
Citation: |
Magn Reson Med. 2010 Apr;63(4):1092-7. |
PubMed ID: |
20373411 |
PMCID: |
PMC2907889 |
Keywords: |
2DRF pulse, fat-water imaging, fast imaging, reduced FOV imaging |
Appears in Collections: |
NCIGT, MIPG |
Sponsors: |
U41 RR019703 (RR) funded by NCRR NIH HHS |
Generated Citation: |
Yuan J., Madore B., Panych L.P. Spatially Varying Fat-Water Excitation using Short 2DRF Pulses. Magn Reson Med. 2010 Apr;63(4):1092-7. PMID: 20373411. PMCID: PMC2907889. |
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Conventional spatial-spectral radiofrequency pulses excite the water or the fat spins in a whole slice or slab. While such pulses prove useful in a number of applications, their applicability is severely limited in sequences with short pulse repetition time due to the relatively long duration of the pulses. In the present work, we demonstrate that, by manipulating the parameters of a two-dimensional spartially-selective (2DRF) pulse designed to excite a two-dimensional spatial profile, the chemical-shift sensitivity of the pulse can be exploited to obtain potentially useful spatially varying fat-water excitation patterns.
Additional Material
1 File (101.882kB)
Yuan-MRM2010-fig3.jpg (101.882kB)