ON THE FIELD INHOMOGENEITY OF A BIRDCAGE COIL

被引：30

作者：

JIN, JM

SHEN, G

PERKINS, T

机构：

[1] UNIV PITTSBURGH,MED CTR,DEPT RADIOL,PITTSBURGH,PA

[2] OTSUKA ELECTR,DEPT APPL SCI,FT COLLINS,CO

来源：

MAGNETIC RESONANCE IN MEDICINE | 1994年 / 32卷 / 03期

关键词：

BIRDCAGE COIL; RF COIL; B-1 FIELD INHOMOGENEITY;

D O I：

10.1002/mrm.1910320319

中图分类号：

R8 [特种医学]; R445 [影像诊断学];

学科分类号：

1002 ; 100207 ; 1009 ;

摘要：

A mathematical model is developed for the numerical analysis of birdcage coils constructed using capacitors having different capacitance. With the aid of this model, it is shown that the deviation of some capacitance introduced by tune, balance, and drive mechanisms can cause inhomogeneity in the B-1 field produced by the coil. Useful curves and formulae are developed to provide a guideline for the design of birdcage coils.

引用

页码：418 / 422

页数：5

共 5 条

[1] AN EFFICIENT, HIGHLY HOMOGENEOUS RADIOFREQUENCY COIL FOR WHOLE-BODY NMR IMAGING AT 1.5-T [J].