Magnetic field homogeneity adjustment method, magnet device, and magnetic resonance imaging apparatus
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Jun 12, 2018
Issued Date -
Jan 8, 2015
app pub date -
Feb 20, 2013
filing date -
Mar 29, 2012
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A computer executes: calculating a first volume distribution (v.d.) of magnetic materials on a shim tray, based on a first magnetic field strength distribution (m.f.s.d.) in a magnetic field space (S3); acquiring a first composite distribution (c.d.) representing a volume by addition of volumes of magnetic materials for each region of the shim tray, and positions of the regions (S5); calculating a virtual m.f.s.d. created by magnetic materials supposed to be arranged as in the first c.d. (S8); calculating a second m.f.s.d. by addition of the first m.f.s.d. and the virtual m.f.s.d. (S9); calculating a second v.d. of magnetic materials on the shim tray, based on the second m.f.s.d. (S3); acquiring a second c.d. representing a volume by addition of volumes of magnetic materials for each region, and positions of the regions (S5); and displaying the positions of regions and the volumes in the first c.d. and second c.d. (S10).
First Claim
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International Classification(s)
- 2013 Application Filing Year
- G01R Class
- 4386 Applications Filed
- 3938 Patents Issued To-Date
- 89.79 % Issued To-Date
Cited Art Landscape
Patent Citation Ranking
- 0 Citation Count
- G01R Class
- 0 % this patent is cited more than
- 7 Age
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