NOISE CORRELATIONS IN DATA SIMULTANEOUSLY ACQUIRED FROM MULTIPLE SURFACE COIL ARRAYS

被引：107

作者：

HAYES, CE ^{[1
]}

ROEMER, PB ^{[1
]}

机构：

[1] GE,CTR CORP RES & DEV,SCHENECTADY,NY 12345

来源：

MAGNETIC RESONANCE IN MEDICINE | 1990年 / 16卷 / 02期

关键词：

D O I：

10.1002/mrm.1910160202

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：

Multiple images acquired simultaneously from an array of surface coils can be combined to give a composite image with an improved signal‐to‐noise ratio (SNR) and a large field of view. The composite images' SNR can be optimized by taking advantage of noise correlations between coils and phase shifts induced by surface coil reception. Methods are derived for making optimal composite images with uniform noise or with uniform sensitivity. A simplified model is used to provide an intuitive understanding of the interaction of noise correlation and phase shift phenomena. © 1990 Academic Press, Inc. Copyright © 1990 Wiley‐Liss, Inc., A Wiley Company

引用

页码：181 / 191

页数：11

共 8 条

[1] QUADRATURE DETECTION COILS - A FURTHER SQUARE-ROOT2 IMPROVEMENT IN SENSITIVITY [J].