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IMAGERIE PAR CONTRASTE DE PHASE
专利权人:
Koninklijke Philips N.V.;Philips Intellectual Property & Standards GmbH
发明人:
申请号:
EP10798398.3
公开号:
EP2509501B1
申请日:
2010.12.03
申请国别(地区):
EP
年份:
2018
代理人:
摘要:
X-ray devices for Phase Contrast Imaging (PCI) are often built up with the help of gratings. For large field-of-views (FOV), production cost and complexity of these gratings could increase significantly as they need to have a focused geometry. Instead of a pure PCI with a large FOV, this invention suggests to combine a traditional absorption X-ray-imaging system with large-FOV with an insertable low-cost PCI system with small-FOV, The invention supports the user to direct the PCI system with reduced FOV to a region that he regards as most interesting for performing a PCI scan thus eliminating X-ray dose exposure for scanning regions not interesting for a radiologist. The PCI scan may be generated on the basis of local tomography.
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中国工程科技知识中心
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