Advanced three-dimensional tailored RF pulse design in volume selective parallel excitation

Shao, Tingting, Xia, Ling, Tao, Guisheng, Chi, Jieru, Liu, Feng and Crozier, Stuart (2012) Advanced three-dimensional tailored RF pulse design in volume selective parallel excitation. IEEE Transactions on Medical Imaging, 31 5: 997-1007. doi:10.1109/TMI.2011.2178035

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Author Shao, Tingting
Xia, Ling
Tao, Guisheng
Chi, Jieru
Liu, Feng
Crozier, Stuart
Title Advanced three-dimensional tailored RF pulse design in volume selective parallel excitation
Journal name IEEE Transactions on Medical Imaging   Check publisher's open access policy
ISSN 0278-0062
1558-254X
Publication date 2012-05-01
Year available 2011
Sub-type Article (original research)
DOI 10.1109/TMI.2011.2178035
Volume 31
Issue 5
Start page 997
End page 1007
Total pages 11
Place of publication Piscataway, NJ, U.S.A.
Publisher IEEE
Collection year 2012
Language eng
Formatted abstract
Volume selective excitation has a variety of uses in clinical MRI, but can suffer from insufficient excitation accuracy and impractically long pulse duration in ultra-high field applications. Based on recently-developed parallel transmission techniques, an optimized 3D tailored RF (TRF) pulse, designed with a novel 3D adaptive trajectory, is proposed to improve and accelerate volume selective excitation. The trajectory is designed to be regular-shaped and adaptively stretched according to the size of a 3D k-space trajectory container. The container is designed to hold most of the RF energy deposition responsible for the desired pattern in the excitation k-space in the use of the blurring patterns caused by the multichannel sensitivity maps. The proposed method can also be used to reduce both global and peak RF energy required during excitation. The feasibility of this method is confirmed by simulations of ultra-high field cases.
Keyword 3D adaptive trajectory
3D tailored RF pulse
Parallel transmission
Trajectory container
Volume selective excitation
Q-Index Code C1
Q-Index Status Confirmed Code
Institutional Status UQ
Additional Notes Date of Publication : 02 December 2011.

Document type: Journal Article
Sub-type: Article (original research)
Collections: Official 2012 Collection
School of Information Technology and Electrical Engineering Publications
 
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Citation counts: TR Web of Science Citation Count  Cited 5 times in Thomson Reuters Web of Science Article | Citations
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Created: Wed, 04 Apr 2012, 20:50:47 EST by Ms Deborah Brian on behalf of School of Information Technol and Elec Engineering