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1.发明授权
公开(公告)号：EP1779327B1
公开(公告)日：2011-06-08
申请号：EP05770222.7
申请日：2005-08-09
发明人： HEY, Joachim , LIEVIN, Marc , BREUER, Manfred
IPC分类号： G06T11/00
摘要： The invention relates to a method for producing 3D tomographic images of an object, whereby a radiation source (1), especially an X-ray source, is moved in relation to the object in a plane of motion (6) about a rotating center. The radiation source (1) emits radiation in a radiation cone (2) whose center beam (3) impinges the object. A correspondingly entrained detector (4) is arranged in said center beam, on the side of the object facing away from the radiation source, and is impinged upon by the radiation attenuated in its intensity by the object. The movement is carried out in such a manner that the center beam (3) is tilted by an angle in relation to the plane of motion (6).
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公开(公告)号：EP1779327A1
公开(公告)日：2007-05-02
申请号：EP05770222.7
申请日：2005-08-09
发明人： HEY, Joachim , LIEVIN, Marc , BREUER, Manfred
IPC分类号： G06T11/00
摘要： The invention relates to a method for producing 3D tomographic images of an object, whereby a radiation source (1), especially an X-ray source, is moved in relation to the object in a plane of motion (6) about a rotating center. The radiation source (1) emits radiation in a radiation cone (2) whose center beam (3) impinges the object. A correspondingly entrained detector (4) is arranged in said center beam, on the side of the object facing away from the radiation source, and is impinged upon by the radiation attenuated in its intensity by the object. The movement is carried out in such a manner that the center beam (3) is tilted by an angle in relation to the plane of motion (6).
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公开(公告)号：EP1843703A1
公开(公告)日：2007-10-17
申请号：EP06706529.2
申请日：2006-01-31
发明人： HEY, Joachim , FREYER, Dirk , BREUER, Manfred , ZÜNDORF, Gerhard , LIEVIN, Marc
IPC分类号： A61B6/03
CPC分类号： A61B6/032 , A61B6/14 , A61B6/4441 , A61B6/5258 , A61B6/587 , A61B6/589
摘要： The invention relates to a method for generating 3D tomographic images of an object (4), according to which a radiation source (1), in particular an X-ray source is displaced in relation to the object (4). The radiation source (1) emits a conical beam of radiation (2) that strikes the object (4), the radiation that has passed through the object (1) and has been weakened in intensity is captured by a detector (5), which is located in the conical beam (2) behind the object (4) in relation to the radiation source (1). The radiation source (1) and the detector (5) are combined in a source-detector assembly (7), which is rotated about a rotational axis (6) during the generation of images in the reference system that is defined by the object (4). Said rotational axis (6) is modified during the generation of the images and/or the source (1) and/or the detector (5) in the reference system that is defined by the source-detector assembly (7) is/are displaced during the generation of the images.
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