Invention Grant
- Patent Title: Vibration reduction for a magnetic resonance imaging apparatus
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Application No.: US16383825Application Date: 2019-04-15
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Publication No.: US10859649B2Publication Date: 2020-12-08
- Inventor: Yukinobu Imamura , Akira Kurome , Takeshi Yatsuo
- Applicant: Hitachi, Ltd.
- Applicant Address: JP Tokyo
- Assignee: HITACHI, LTD.
- Current Assignee: HITACHI, LTD.
- Current Assignee Address: JP Tokyo
- Agency: Foley & Lardner LLP
- Priority: JP2018-165497 20180904
- Main IPC: G01R33/385
- IPC: G01R33/385

Abstract:
According to one embodiment, a magnetic resonance imaging apparatus includes: a cylindrical magnetic pole for generating a static magnetic field in an imaging region; a cylindrical gradient magnetic field coil arranged on a radially inner side of the magnetic pole, coaxially with the magnetic pole to generate a dynamic magnetic field having a linear magnetic field strength in the imaging region; a cylindrical high frequency coil arranged on a radially inner side of the gradient magnetic field coil, coaxially with the magnetic pole and the gradient magnetic field coil to generate a high frequency magnetic field in the imaging region; and a computer system for processing signals to obtain images. The magnetic resonance imaging apparatus further includes at least two loop-shaped additional coils arranged on the radially outer side of the gradient magnetic field coil and having different electric current circulating direction.
Public/Granted literature
- US20200072922A1 MAGNETIC RESONANCE IMAGING APPARATUS Public/Granted day:2020-03-05
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