Title :
Design of Cylindrical Transverse Gradient Coil for 1.5 T MRI System
Author :
Xiaoji Du ; Zian Zhu ; Ling Zhao ; Guoqing Zhang ; Feipeng Ning ; Zhiyong Liu ; Zhilong Hou ; Meifen Wang ; Wenbin Ma ; Weichao Yao
Author_Institution :
Inst. of High Energy Phys. (IHEP), Beijing, China
fDate :
6/1/2012 12:00:00 AM
Abstract :
Magnetic resonance imaging (MRI) requires the gradient coils to produce magnetic field gradients, to encode three-dimensional information. In this work, a parametric method to the design of cylindrical transverse gradient coils for high-resolution magnetic resonance imaging (MRI) is proposed. The cylindrical transverse gradient coil was separated to several turns of curves, each turn is considered as a curve butted by two quasi-elliptic arcs. The parameterized curve is optimized with the simulated annealing algorithm. A cylindrical transverse gradient coil with high level of linearity is designed for 1.5 T MRI system. The cylindrical transverse gradient coil can build a high-quality transverse gradient magnetic field in a large spherical zone, concentric with the main magnet of the MRI system.
Keywords :
biomedical MRI; coils; design; simulated annealing; MRI system; cylindrical transverse gradient coil design; high-resolution magnetic resonance imaging; magnetic field gradients; magnetic flux density 1.5 T; optimization; parametric method; quasielliptic arcs; simulated annealing algorithm; spherical zone; three-dimensional information encoding; Coils; Linearity; Magnetic fields; Magnetic resonance; Magnetic resonance imaging; Simulated annealing; Gradient coil; MRI; quasi-elliptic function; simulated annealing algorithm;
Journal_Title :
Applied Superconductivity, IEEE Transactions on
DOI :
10.1109/TASC.2011.2174954
