DocumentCode :
879953
Title :
Author :
Wang, Shumin ; Murphy-Boesch, Joseph ; Merkle, Hellmut ; Koretsky, Alan P. ; Duyn, Jeff H.
Author_Institution :
Lab. of Functional & Mol. Imaging, Nat. Inst. of Neurological Disorders & Stroke, Bethesda, MD
Volume :
28
Issue :
4
fYear :
2009
fDate :
4/1/2009 12:00:00 AM
Firstpage :
551
Lastpage :
554
Abstract :
Transmit B 1 + field homogenization in high-field ( > 3.0 T) human magnetic resonance imaging (MRI) is challenging due to radio-frequency wavelength effects. An approach based on appropriately coupling surface coils to a volume coil was investigated. Electromagnetic simulation results demonstrated the feasibility and effectiveness of this method in proton MRI of the human head at 7.0 T.
Keywords :
biomedical MRI; coils; B1 + field homogenization; electromagnetic simulation; high-field magnetic resonance imaging; human head; multilayer coupled coils; proton MRI; radio-frequency wavelength effects; Coils; Couplings; Humans; Magnetic heads; Magnetic multilayers; Magnetic resonance imaging; Molecular imaging; Protons; Radio control; Radio frequency; Magnetic resonance imaging (MRI); radio frequency coils; Algorithms; Electromagnetic Fields; Head; Humans; Magnetic Resonance Imaging; Models, Theoretical; Phantoms, Imaging;
fLanguage :
English
Journal_Title :
Medical Imaging, IEEE Transactions on
Publisher :
ieee
ISSN :
0278-0062
Type :
jour
DOI :
10.1109/TMI.2008.2006523
Filename :
4637858
Link To Document :
