A new approach for magnetic resonance RF head coil design.
In this work, a new concept in high field RF head coil design for MRI applications is presented. An 8-element phased array head coil operating at 4T is designed based on a hybrid method combining reciprocity theorem and inverse method. Both circularly or linearly polarized head coils can be designed. A FDTD/MOM calculation method is used to model the phased array head coil and to accurately calculate the RF behavior inside a human head model. The simulation results reported herein demonstrate the feasibility and flexibility of the design concept and show that, compared to conventional methods, improved B1field homogeneity is achievable at high field.
Keong Li
Bing
B
Sch. of Inf. Technol. & Electr. Eng., Queensland Univ., Brisbane, Qld.
Xu
Bin
B
Tat Hui
Hon
H
Crozier
Stuart
S