Title:
X線CTスキャナ
Document Type and Number:
Japanese Patent JP4585158
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To expand the degree of freedom in setting beam thickness of X-rays. SOLUTION: This X-ray CT scanner is equipped with an X-ray tube 111 to irradiate X-rays to a subject, a variable X-ray diaphragm 111c to stop down beam thickness of the X-rays, an X-ray detector 112 with plural detecting elements arranged in a matrix to detect X-rays passed through the subject, a memory part 12M to store plural correction data files corresponding to a plurality of beam thickness, a pretreatment part 123 to correct output of the X-ray detector 112 based on at least one correction data file read out from the memory part 12M, a reconstruction part 125 to reconstruct image data relating to the subject based on output of the pretreatment part 123, and a control part 121 to control the variable X-ray diaphragm 111c to change X-ray thickness regardless of a plurality of beam thickness corresponding to the plural stored correction data files.
Inventors:
Yasuo Saito
Application Number:
JP2001326640A
Publication Date:
November 24, 2010
Filing Date:
October 24, 2001
Export Citation:
Assignee:
Toshiba Corporation
International Classes:
A61B6/03
Domestic Patent References:
| JP9122112A | ||||
| JP1024031A | ||||
| JP10305027A | ||||
| JP2000166911A | ||||
| JP1043174A | ||||
| JP7124150A |
Attorney, Agent or Firm:
Satoshi Kono
Makoto Nakamura
Sadao Muramatsu
Shoji Kawai
Makoto Nakamura
Sadao Muramatsu
Shoji Kawai