Proton MR spectroscopic imaging without water suppression

被引：37

作者：

van der Veen, JWC

Weinberger, DR

Tedeschi, G

Frank, JA

Duyn, JH

机构：

[1] NIMH, Clin Brain Disorders Branch, NIH, In Vivo NMR Res Ctr, Bethesda, MD 20892 USA

[2] NIH, Lab Diagnost Radiol Res, In Vivo NMR Res Ctr, Bethesda, MD 20892 USA

[3] Univ Naples 2, Inst Neurol Sci, Naples, Italy

来源：

RADIOLOGY | 2000年 / 217卷 / 01期

关键词：

brain; metabolism; MR; magnetic resonance (MR); pulse sequences; reconstruction algorithms; spectroscopy;

D O I：

10.1148/radiology.217.1.r00oc36296

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：

To improve reproducibility in proton magnetic resonance (MR) spectroscopic imaging in human brain, simultaneous acquisition of the internal water reference and metabolite signals was evaluated. Measurements in healthy volunteers showed that the increase in dynamic range from signal oversampling was sufficient to avoid digitization errors. In addition, use of singular value decomposition techniques and finite impulse response filters proved effective in separating water and metabolite signals and providing estimates of the metabolite concentrations.

引用

收藏

页码：296 / 300

页数：5

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