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Title:
PARTICLE BEAM THERAPY SYSTEM AND MAGNETIC RESONANCE IMAGING APPARATUS
Document Type and Number:
WIPO Patent Application WO/2021/059633
Kind Code:
A1
Abstract:
The present invention provides a particle beam irradiation system having an MRI device mounted thereon, wherein a particle beam monitor can be disposed in proximity to the MRI device. This system comprises: a bed 24 on which an irradiation target 26 is to be placed; an irradiation device 21 which irradiates the irradiation target with a particle beam; and a magnetic resonance imaging apparatus 150 which captures an image of an irradiation subject 25. The magnetic resonance imaging apparatus 150 is provided with: a magnet 50 that generates a magnetostatic field in an imaging space 55 in which the irradiation target 26 is placed; and a yoke 60 which is disposed outside the imaging space 55 and through which magnetic fluxes of the magnetic field generated by the magnet 50 are passed. The irradiation device 21 is disposed on a rear face side of the yoke 60 as viewed from the imaging space 55, and irradiates the irradiation target with a particle beam through either a through-hole formed in the yoke 60 or a gap formed in the yoke. The direction of the particle beam going into the imaging space intersects with the orientation of the magnetostatic field applied to the imaging space by the magnet.

Inventors:
FUJII YUSUKE (JP)
AOKI MANABU (JP)
UMEZAWA MASUMI (JP)
Application Number:
PCT/JP2020/024901
Publication Date:
April 01, 2021
Filing Date:
June 24, 2020
Export Citation:
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Assignee:
HITACHI LTD (JP)
International Classes:
A61N5/10
Foreign References:
US20170080253A12017-03-23
US20080144769A12008-06-19
JP4382165B22009-12-09
JPH0219932B21990-05-07
Attorney, Agent or Firm:
SANNOZAKA PATENT LAW FIRM (JP)
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