Invention Grant
- Patent Title: RF coil and magnetic resonance imaging device
- Patent Title (中): 射频线圈和磁共振成像装置
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Application No.: US13984855Application Date: 2012-02-01
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Publication No.: US09459331B2Publication Date: 2016-10-04
- Inventor: Yosuke Otake , Yoshihisa Soutome , Ryota Sato , Yoshitaka Bito , Koji Hirata
- Applicant: Yosuke Otake , Yoshihisa Soutome , Ryota Sato , Yoshitaka Bito , Koji Hirata
- Applicant Address: JP Tokyo
- Assignee: HITACHI, LTD.
- Current Assignee: HITACHI, LTD.
- Current Assignee Address: JP Tokyo
- Agency: Baker Botts, L.L.P.
- Priority: JP2011-028818 20110214
- International Application: PCT/JP2012/052270 WO 20120201
- International Announcement: WO2012/111433 WO 20120823
- Main IPC: G01R33/3415
- IPC: G01R33/3415 ; G01R33/36 ; G01R33/422 ; G01R33/34

Abstract:
To provide a technique for sufficiently eliminating magnetic coupling between RF coils and improving image quality when a multi-element multi-tuned RF coil is used as a receive RF coil for an MRI device. In the invention, each of RF coils which constitute a multi-element multi-tuned RF coil which is used as a receive RF coil for an MRI device is provided with an inter-coil magnetic coupling prevention circuit which resonates at each frequency to which each RF coil is tuned and provides a high impedance. The inter-coil magnetic coupling prevention circuit adjusts an inductor and a capacitor so that both of a circuit on the side of a pre-amplifier viewed from both ends of a signal reception circuit and a circuit on the side of the signal reception circuit viewed from both ends of a serial resonance circuit connected to the pre-amplifier resonate at a plurality of frequencies to which the respective RF coils are tuned.
Public/Granted literature
- US20130314091A1 RF COIL AND MAGNETIC RESONANCE IMAGING DEVICE Public/Granted day:2013-11-28
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