公开(公告)号：WO2011070488A1

公开(公告)日：2011-06-16

申请号：PCT/IB2010/055561

申请日：2010-12-03

Applicant: KONINKLIJKE PHILIPS ELECTRONICS N.V. ,  PHILIPS INTELLECTUAL PROPERTY & STANDARDS GMBH ,  GELLER, Diester ,  ENGEL, Klaus, J. ,  VOGTMEIER, Gereon ,  KOEHLER, Thomas ,  ROESSL, Ewald

Inventor： GELLER, Diester ,  ENGEL, Klaus, J. ,  VOGTMEIER, Gereon ,  KOEHLER, Thomas ,  ROESSL, Ewald

IPC: A61B6/00 ,  G01N23/04

CPC classification number: A61B6/00 ,  A61B6/4291 ,  A61B6/4441 ,  A61B6/484

Abstract: X-raydevices for Phase Contrast Imaging (PCI) are often built up with the help ofgratings. 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-rayimaging system with large-FOV with an insertable low-cost PCI systemwith small-FOV, The invention supports the user to direct the PCI systemwith reduced FOV to a region that he regards as most interesting for performing a PCI scan thus eliminating X-raydose exposure for scanning regions not interesting fora radiologist. The PCI scan may be generated on the basis of local tomography.

Abstract translation: 用于相位对比成像（PCI）的X射线装置通常在格栅的帮助下建立。 对于大视野（FOV）来说，这些光栅的生产成本和复杂性可能会因为需要聚焦几何而显着增加。 本发明不是采用具有大FOV的纯PCI，而是将传统的吸收式X射线成像系统与大型FOV结合，并具有小FOV的可插入式低成本PCI系统。本发明支持用户将具有降低的FOV的PCI系统 他认为最有意思的是进行PCI扫描，从而消除了对放射科医生不感兴趣的扫描区域的X射线摄影。 可以基于局部断层摄影产生PCI扫描。