Title :
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
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;
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
DOI :
10.1109/APS.2008.4619687
