Single-point Dixon water-fat imaging using 64-channel single-echo acquisition MRI.
Single-point Dixon water-fat imaging using 64-channel single-echo acquisition MRI.
复制标题
使用 64 通道单回波采集 MRI 的单点 Dixon 水脂成像。
DOI:
10.1002/cmr.b.20120
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发表时间:
2008
期刊:
影响因子:
--
通讯作者:
Ji,JimX
中科院分区:
文献类型:
--
作者:
Son,JongBum;Wright,StevenM;Ji,JimX
This article presents a method for high‐speed water‐fat imaging using Single‐Echo Acquisition (SEA) with an array of 64 localized coil elements and single‐point Dixon sequence. The method forms two‐dimensional separate water and fat images from a single echo data. Specifically, a channel correlation and region‐growing algorithm were developed to extract the phase information from the single echo data, eliminating the need for multiple data acquisition normally required for water/fat separation. Phantom studies on a 4.7 T scanner show that the method can handle large interchannel and cross‐channel phase variations, even at relative high data noise levels. Assume that the water and fat are spatially separated and they can be identified by the phase discontinuity caused by the chemical frequency shift, the new method can acquire separate water and fat images without reducing the high frame rates of the SEA imaging method. Although its capability is limited if there are large susceptibility artifacts, disconnected tissues, or pixels with mixed fat and water signals, the new method is potentially useful for dynamic imaging of small animals, where the SEA imaging can provide high imaging speed but may suffer from reduced contrast due to the strong fat signals at short repetition time. © 2008 Wiley Periodicals, Inc. Concepts Magn Reson Part B (Magn Reson Engineering) 33B: 152–162, 2008
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DOI:
--
发表时间:
2001
期刊:
AJNR. American journal of neuroradiology
影响因子:
--
作者:
F. Rybicki;R. Mulkern;R. Robertson;C. Robson;T. Chung;J. Ma
通讯作者:
J. Ma
DOI:
--
发表时间:
2006
期刊:
影响因子:
--
作者:
M. McDougall
通讯作者:
M. McDougall
DOI:
10.1109/iembs.2006.260797
发表时间:
2006
期刊:
Conference proceedings : ... Annual International Conference of the IEEE Engineering in Medicine and Biology Society. IEEE Engineering in Medicine and Biology Society. Annual Conference
影响因子:
--
作者:
Wright,StevenM;McDougall,MaryPreston;Bosshard,JohnC
通讯作者:
Bosshard,JohnC
影响因子:
1.3
作者:
BYDDER, GM;YOUNG, IR
通讯作者:
YOUNG, IR
影响因子:
19.7
作者:
KELLER, PJ;HUNTER, WW;SCHMALBROCK, P
通讯作者:
SCHMALBROCK, P