Measurement of Magnetic Resonance Signal from a Rat Head in Ultra-low Magnetic Field
Measurement of Magnetic Resonance Signal from a Rat Head in Ultra-low Magnetic Field
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超低磁场下大鼠头部磁共振信号的测量
DOI：
10.1109/isec.2015.7383470
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发表时间：
2015
期刊：
影响因子：
--
通讯作者：
G. Uehara
中科院分区：
文献类型：
--
作者：
D. Oyama;N. Tsuyuguchi;M. Higuchi;J. Kawai;M. Miyamoto;Y. Adachi;G. Uehara
在诸如脑磁图（MEG）的应用中，在超低磁场中的磁共振成像（MRI）是用于同时检测解剖图像和生物磁信号的有吸引力的测量方法。为了将超低场磁共振成像与小动物脑磁图系统联合收割机相结合，我们研制了一种基于超导量子干涉器件（SQUID）技术的小型超低场磁共振成像系统。在这项研究中，我们展示了超低场MRI测量大鼠头部。通过将所获得的结果与由常规MRI系统获取的MR图像进行比较，确定通过使用我们的超低场MRI系统测量的MR信号的局部源与大鼠脑区域一致。
Magnetic resonance imaging (MRI) in ultra-low magnetic fields is an attractive measurement method for simultaneous detection of the anatomical images and biomagnetic signals in applications such as agnetoencephalography (MEG). To combine the ultra-low field MRI with small-animal MEG systems, we developed a compact ultra-low field MRI system based on the superconducting quantum interference device (SQUID) techniques. In this study, we demonstrate ultra-low field MRI measurement of a rat head. By comparing the obtained result with the MR image acquired by a conventional MRI system, the localized source of the MR signal measured by using our ultra-low field MRI system was determined to be in agreement with the rat brain region.