Analysis of "scanner frequency" noise in fMRI time series

被引：0

作者：

li, Shunshan ^{[1
]}

Buonocore, Michael H. ^{[1
]}

Zhuang, Tiange ^{[1
]}

Shi, Jianrong ^{[1
]}

Lai, Song ^{[1
]}

机构：

[1] Univ Calif Davis, Imaging Res Ctr, Sacramento, CA 95817 USA

来源：

2005 27TH ANNUAL INTERNATIONAL CONFERENCE OF THE IEEE ENGINEERING IN MEDICINE AND BIOLOGY SOCIETY, VOLS 1-7 | 2005年

关键词：

D O I：

暂无

中图分类号：

R318 [生物医学工程];

学科分类号：

0831 ;

摘要：

MRI system noise often appears in the fMRI timeseries in phantom and human subjects experiments. The predominant characteristic of this MRI system noise is high amplitude at one or a few specific temporal frequencies. These frequencies are immediately found by FFT analysis, but they have also been identified in ICA methods. This study indicates that these frequencies should be considered in the design of experimental paradigms and temporal digital filters.

引用

页码：5097 / 5098

页数：2

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