Absolute metabolite quantification by in vivo NMR spectroscopy:: IV.: Multicentre trial on MRSI localisation tests
Absolute metabolite quantification by in vivo NMR spectroscopy:: IV.: Multicentre trial on MRSI localisation tests
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DOI：
10.1016/s0730-725x(98)00120-9
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发表时间：
1998-11-01
影响因子：
2.5
通讯作者：
Ziegler, A
中科院分区：
文献类型：
--
作者：
Bovee, W;Canese, R;Ziegler, A
利用水中窄管的空间响应函数(SRF)的实验值与理论值之差，进行了磁共振波谱成像(MRSI)的定位试验。从该差值推导出视场中有限区域内的相对信号量的定量性能参数。由两个回波的信号强度导出的参数SL描述了磁流变实验和涡流造成的总信号损失。欧洲多中心试验的结果表明，该方法适用于MRSI本地化性能的评估。(C)1998年爱思唯尔科学公司。
The difference between the experimental and theoretical spatial response function (SRF) of a narrow tube with water is used for a localization test for Magnetic Resonance Spectroscopic Imaging (MRSI). From this difference a quantitative performance parameter is derived for the relative amount of signal within a limited region in the field of view. The total signal loss by the MRSI experiment and eddy currents is described by a parameter SL derived from the signal intensities of two echoes. Results of a European multi-centre trial show that this approach is suited for assessment of MRSI localization performance. (C) 1998 Elsevier Science Inc.