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Radio frequency coil, magnetic resonance imaging device using same, and method for adjusting multi-channel radio frequency coil
专利权人:
HITACHI; LTD.
发明人:
Yosuke Otake,Hisaaki Ochi,Kohjiro Iwasawa
申请号:
US16075227
公开号:
US10761158B2
申请日:
2017.02.17
申请国别(地区):
US
年份:
2020
代理人:
摘要:
A multichannel array coil of an MRI apparatus achieves both a wide sensitivity and low noise. An RF coil (array coil) is provided with a plurality of subcoils. Each of those subcoils is adjusted to be receivable of nuclear magnetic resonance signals, and also adjusted so that a part of current (first current) passing through one subcoil upon receipt of the signals flows into the other subcoil in the form of sub-current. A flowing direction of the first current is opposite to the flowing direction of the sub-current, and an electric field generated by the first current within a subject and an electric field generated by the first sub-current within the subject intensify each other in the space between a first loop coil unit and a second loop coil unit. Accordingly, noise correlation that is determined by an inner product of the electric fields is reduced, thereby achieving low noise.
来源网站:
中国工程科技知识中心
来源网址:
http://www.ckcest.cn/home/

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