Title:
放射線画像撮影装置
Document Type and Number:
Japanese Patent JP5416426
Kind Code:
B2
Abstract:
Fan beams of radiation are output from a multiplicity of radiation sources. Radiation is output simultaneously only from a part of the radiation sources having irradiation ranges that neither overlap with each other nor are adjacent to each other. Image correction data corresponding to each group of radiation sources is obtained by sequentially outputting radiation to the radiographic image detector while the groups of radiation sources are sequentially switched without setting a subject. An effective area that has a value higher than a predetermined threshold value is determined for each image correction data. Radiation is sequentially output to the radiographic image detector in a state in which a subject is set while groups of radiation sources are switched. Radiation image data obtained based on the effective area, and which corresponds to each of the groups of radiation sources, is corrected based on the image correction data.
Inventors:
Kenji Takahashi
Application Number:
JP2009022115A
Publication Date:
February 12, 2014
Filing Date:
February 03, 2009
Export Citation:
Assignee:
FUJIFILM Corporation
International Classes:
G01N23/04; A61B6/00; G01T1/24; G03B42/00
Domestic Patent References:
JP2002191591A | ||||
JP7079961A | ||||
JP2007265981A | ||||
JP2006528891A | ||||
JP2007263961A |
Foreign References:
WO2008056814A1 | ||||
WO2007125691A1 |
Attorney, Agent or Firm:
Yanagita Seiji
Go Sakuma
Go Sakuma