HARMONIC STRUCTURE OF CYLINDRICAL IMAGING COILS

被引：11

作者：

HARPEN, MD

机构：

[1] University of South Alabama, Department of Radiology, Mobile, Alabama

来源：

MEDICAL PHYSICS | 1990年 / 17卷 / 04期

关键词：

D O I：

10.1118/1.596467

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：

Presented is a derivation of an exact closed-form expression for the spectra of resonant frequencies for magnetic resonance imaging birdcage coils in the limit of long coils with many elements. Results of the analysis are compared with observation in a variety of birdcage coils where it is shown that for even relatively short coils the progression of resonant frequencies are of the form ωm = ω1m ± 1/2 + low pass; — high pass, with m integer and ω the primary resonance. © 1990, American Association of Physicists in Medicine. All rights reserved.

引用

页码：686 / 690

页数：5

共 5 条

[1] ESTIMATING RADIOFREQUENCY POWER DEPOSITION IN BODY NMR IMAGING [J].