SIGNAL-TO-NOISE RATIO IMPROVEMENTS IN INVIVO HIGH-RESOLUTION MICROVOLUME SELECTED SPECTROSCOPY

被引：3

作者：

CROZIER, S ^{[1
]}

FIELD, J ^{[1
]}

DODDRELL, DM ^{[1
]}

机构：

[1] UNIV QUEENSLAND,DEPT CHEM,ST LUCIA,QLD 4067,AUSTRALIA

来源：

MAGNETIC RESONANCE IMAGING | 1990年 / 8卷 / 03期

关键词：

In vivo spectroscopy; Signal-to-noise ratio; Volume selection;

D O I：

10.1016/0730-725X(90)90100-G

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 system capable of in vivo volume selected 1H NMR spectroscopy of voxels as small as 0.2 cm3 is described. Signal-to-noise ratio improvements with probe design and a novel signal steering device are detailed. A high-resolution, image-directed proton spectrum from 0.2 cm3 of a rat's brain at 200 MHz obtained using the SUBMERGE/SPACE pulse sequence is presented. Single-scan voxel shimming was implemented to improve spectral resolution. © 1990.

引用

页码：277 / 283

页数：7

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