Title:
脳計測装置及び脳計測方法
Document Type and Number:
Japanese Patent JP7370008
Kind Code:
B2
Abstract:
A brain measurement apparatus includes: a magnetoencephalograph including optically pumped magnetometers, magnetic sensors for measuring geomagnetic field at positions of the optically pumped magnetometers, magnetic sensors for measuring a fluctuating magnetic field at the positions of the optically pumped magnetometers, nulling coils for cancelling the geomagnetic field, and an active shield coil for cancelling the fluctuating magnetic field; an MRI apparatus including nulling coils for applying a static magnetic field and a gradient magnetic field, a transmission coil, and a receive coil; and a control device that, when measuring a brain's magnetic field, controls currents supplied to the nulling coils and the active shield coil based on measured values of the magnetic sensors and, when measuring an MR image, controls the static magnetic field and the gradient magnetic field by controlling currents supplied to the nulling coils and generates an MR image from an output of the receive coil.
Inventors:
Takahiro Moriya
Takenori Oida
Yusuke Saito
Motohiro Suyama
Tetsuo Kobayashi
Takenori Oida
Yusuke Saito
Motohiro Suyama
Tetsuo Kobayashi
Application Number:
JP2020103953A
Publication Date:
October 27, 2023
Filing Date:
June 16, 2020
Export Citation:
Assignee:
Hamamatsu Photonics K.K.
Kyoto University
Kyoto University
International Classes:
A61B5/245; A61B5/055; G01R33/02; G01R33/26; G01R35/00
Domestic Patent References:
| JP2013523201A | ||||
| JP2011146621A | ||||
| JP2009125396A | ||||
| JP2016109665A |
Foreign References:
| WO2012120732A1 | ||||
| US20200072916 |
Attorney, Agent or Firm:
Yoshiki Hasegawa
Yoshiki Kuroki
Kenichi Shibayama
Yuji Suwazawa
Yoshiki Kuroki
Kenichi Shibayama
Yuji Suwazawa
Previous Patent: Endoscope operation support system and endoscope system
Next Patent: Brain measurement device and brain measurement method
Next Patent: Brain measurement device and brain measurement method