Invention Application
- Patent Title: X-RAY TOMOGRAPHIC IMAGING APPARATUS
- Patent Title (中): X射线成像装置
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Application No.: US11944262Application Date: 2007-11-21
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Publication No.: US20080260092A1Publication Date: 2008-10-23
- Inventor: Yasuhiro Imai , Akihiko Nishide
- Applicant: Yasuhiro Imai , Akihiko Nishide
- Priority: JP2006-316030 20061122
- Main IPC: H05G1/60
- IPC: H05G1/60 ; G06K9/00

Abstract:
For the purpose of providing an X-ray tomographic imaging apparatus for displaying a dual-energy image to facilitate diagnosis by an operator, an X-ray tomographic imaging apparatus (10) comprises: an image comparison information calculating section (24) for calculating image comparison information between said first-energy projection dataset (LD) or first-energy tomographic image (LT) and said second-energy projection dataset (HD) or second-energy tomographic image (HT); a region-of-interest defining section (23) for defining a region of interest; a weighting factor determining section (25-2) for determining a weighting factor for use in weighted subtraction processing between said first-energy projection dataset or first-energy tomographic image and said second-energy projection dataset or second-energy tomographic image, such that said image comparison information in said region of interest can be substantially eliminated by conducting said weighted subtraction processing; and a dual-energy image reconstructing section (22) for reconstructing a dual-energy image by conducting weighted subtraction processing between said first-energy projection dataset or first-energy tomographic image and said second-energy projection dataset or second-energy tomographic image used in said image comparison information calculating section, using a weighting factor determined at said weighting factor determining section.
Public/Granted literature
- US07873141B2 X-ray tomographic imaging apparatus Public/Granted day:2011-01-18
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