Title:
MRI装置の磁石構造体およびMRI装置
Document Type and Number:
Japanese Patent JP4783362
Kind Code:
B2
Abstract:
A magnet structure for an MRI apparatus utilizing a permanent magnet, which apparatus has an inverted U shape with two essentially parallel opposed pole pieces, which are supported at a predetermined distance from each other by an inverted U-shaped magnetic yoke, which pole pieces and/or at least a portion of which yoke delimit a cavity for receiving at least a part of the patient's body, whereas a partial volume is generated in the volume of said cavity, which has such magnetic field values as to provide MRI images of a sufficient quality to enable the use thereof as diagnostic images, i.e. a so-called imaging volume. According to the invention, the distance (D1) between the pole pieces (1, 2) of the magnet structure is of 36 to 42 cm, and the pole pieces (1, 2) have a surface area of 4500 to 5500 cm2. The invention also relates to an MRI imaging apparatus, particularly designed for the spine region, or a part thereof, and which has a magnet structure as described above.
Inventors:
Satra Gno, Luigi
Trekutorini, Alessandro
Pittalga, Stefano
Biglieri, eugenio
Trekutorini, Alessandro
Pittalga, Stefano
Biglieri, eugenio
Application Number:
JP2007512184A
Publication Date:
September 28, 2011
Filing Date:
May 02, 2005
Export Citation:
Assignee:
Esaote Sochieta Peratini
International Classes:
A61B5/055; G01R33/38; G01R33/383
Domestic Patent References:
| JPH09283328A | 1997-10-31 | |||
| JPH0845729A | 1996-02-16 | |||
| JP2003235824A | 2003-08-26 | |||
| JPS6486954A | 1989-03-31 | |||
| JP2004073288A | 2004-03-11 | |||
| JP2002336214A | 2002-11-26 | |||
| JPS62201147A | 1987-09-04 | |||
| JPH0394732A | 1991-04-19 | |||
| JPH11104109A | 1999-04-20 | |||
| JP2000200716A | 2000-07-18 | |||
| JP2002360536A | 2002-12-17 |
Attorney, Agent or Firm:
Hideo Takino
Sadao Matsumura
Fumio Takino
Sadao Matsumura
Fumio Takino