Title:
X線診断装置及び放射線診断装置
Document Type and Number:
Japanese Patent JP4383558
Kind Code:
B2
Abstract:
An X-ray diagnostic apparatus forms image data using an arbitrary region in the detectable area of a planar detector having a plurality of X-ray detector elements arrayed in a matrix. An X-ray sensor array for exposure-controlling having a plurality of X-ray sensors arrayed in a matrix overlaps the planar detector. An X-ray controller controls an X-ray tube unit on the basis of an output from the X-ray sensor array in order to optimize the X-ray dose on a subject. A controller selects at least one X-ray sensor in accordance with the position of a partial region where an image is formed. The controller controls at least one of the X-ray sensor array and X-ray controller so as to control the X-ray dose on the basis of an output from the selected X-ray sensor.
Inventors:
Seiichiro Nagai
Application Number:
JP20548998A
Publication Date:
December 16, 2009
Filing Date:
July 21, 1998
Export Citation:
Assignee:
Toshiba Medical System Engineering Co., Ltd.
Toshiba Corporation
Toshiba Corporation
International Classes:
A61B6/00; H05G1/44; H05G1/64; A61B6/06
Domestic Patent References:
| JP6272288A | ||||
| JP7201490A | ||||
| JP454217B2 | ||||
| JP8139996A | ||||
| JP767863A | ||||
| JP833621A | ||||
| JP7171142A | ||||
| JP938071A | ||||
| JP2500895B2 | ||||
| JP4206397A | ||||
| JP8186762A | ||||
| JP8299316A |
Foreign References:
| WO1998003884A1 | ||||
| EP0817472A1 |
Attorney, Agent or Firm:
Hiroshi Horiguchi