X-ray or gamma ray systems or devices – Specific application – Computerized tomography
Reexamination Certificate
2008-06-05
2010-06-22
Glick, Edward J (Department: 2882)
X-ray or gamma ray systems or devices
Specific application
Computerized tomography
Reexamination Certificate
active
07742557
ABSTRACT:
The invention relates to a method for generating a 3D reconstruction of an especially large body that cannot be captured by a single projection by capturing at least two projections, which together capture the body, at each of the positions taken up by a C-arm X-ray unit. Data from the two projections is projected onto a virtual detector and the data from the virtual detector is then used for the filtered back projection procedure. It is assumed here that the real source remains motionless and that only the detector moves. A virtual detector D1′/D2′ is only used in order to carry out large scale filtering in the event that real sources Q1and Q2for the two projections do not coincide. A return is then made to two independent projections. These two independent projections are used separately in the filtered back projection procedure to generate the 3D reconstruction.
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Brunner Thomas
Heigl Benno
Kunze Holger
Vogt Florian
Glick Edward J
Siemens Aktiengesellschaft
Taningco Alexander H
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