7 tesla human MRI with assistance of computational eletromagnetics

Author

Tang, Lin ; Hue, Yik-Kiong ; Ibrahim, Tamer S.

Author_Institution

Electr. & Comput. Eng., Oklahoma Univ., Norman, OK

fYear

2008

fDate

5-11 July 2008

Firstpage

1

Lastpage

4

Abstract

In HF or UHF magnetic resonance imaging (MRI) applications, inhomogeneous excitation magnetic field caused poor quality images and power absorption caused safety concerns are two of obstructions in clinic usage. Our work presented an electromagnetic excitation scheme that should realize B₁ ⁺ field homogeneity improvement, as well as the reduction of the absorbing power by the body and of peak specific absorption rates (SARs).

Keywords

bioelectric phenomena; biological effects of fields; biomagnetism; biomedical MRI; computational electromagnetics; medical computing; B₁ ⁺ field homogeneity; HF magnetic resonance imaging; SAR; UHF magnetic resonance imaging; computational electromagnetics; electromagnetic excitation scheme; human MRI; image quality; inhomogeneous excitation magnetic field; magnetic flux density 7 T; power absorption; specific absorption rates; Biological system modeling; Clocks; Coils; Finite difference methods; Humans; Magnetic fields; Magnetic resonance imaging; Power system modeling; Radio frequency; Time domain analysis;

fLanguage

English

Publisher

ieee

Conference_Titel

Antennas and Propagation Society International Symposium, 2008. AP-S 2008. IEEE

Conference_Location

San Diego, CA

Print_ISBN

978-1-4244-2041-4

Electronic_ISBN

978-1-4244-2042-1

Type

conf

DOI

10.1109/APS.2008.4619687

Filename

4619687