Title :
B1 field comparison for RF coils in ultra-highfield MRI
Author :
Yoo, Hyoungsuk ; Lee, Jeyull ; Akgun, Can E. ; Gopinath, Anand ; Vaughan, John Thomas
Author_Institution :
Dept. of Biomed. Eng., Univ. of Ulsan, Ulsan, South Korea
Abstract :
This reported work demonstrates the use of convex optimisation to localise the transverse magnetic B+1 field in regions of interest for recently proposed multi-sectioned alternating impedance coils and the traditional transmission line coil. An approach based on different axial slices to identical radio frequency (RF) coils except upper stripline structure is investigated. Electromagnetic simulation results are compared for RF coils and discussed in detail at 7.0 T.
Keywords :
biomedical MRI; coils; convex programming; B1 field comparison; RF coils; axial slices; convex optimisation; electromagnetic simulation; magnetic flux density 7.9 T; multisectioned alternating impedance coils; radiofrequency coils; transmission line coil; transverse magnetic B+1 field; ultrahigh-field MRI; ultrahigh-field magnetic resonance imaging;
Journal_Title :
Electronics Letters
DOI :
10.1049/el.2013.1255
