- 专利标题: METHOD AND DEVICE FOR PRODUCING A PANORAMIC TOMOGRAPHIC IMAGE OF AN OBJECT TO BE RECORDED
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申请号: EP19164606.6申请日: 2019-03-22
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公开(公告)号: EP3711672A1公开(公告)日: 2020-09-23
- 发明人: Eichner, Stefan , Hülsbusch, Markus
- 申请人: Sirona Dental Systems GmbH , DENTSPLY SIRONA Inc.
- 申请人地址: Fabrikstr. 31 64625 Bensheim DE
- 专利权人: Sirona Dental Systems GmbH,DENTSPLY SIRONA Inc.
- 当前专利权人: Sirona Dental Systems GmbH,DENTSPLY SIRONA Inc.
- 当前专利权人地址: Fabrikstr. 31 64625 Bensheim DE
- 代理机构: Özer, Alpdeniz
- 主分类号: A61B6/14
- IPC分类号: A61B6/14 ; A61B6/00 ; A61B6/03
摘要:
The invention relates to a method for producing a panoramic tomographic image (1, 11, 60) of an object (2) to be recorded using a 2D panoramic X-ray device (3), in the course of which X-rays (4) produced by means of an X-ray source (5) irradiate the object (2) and are acquired by means of an X-ray detector (7), wherein, during a movement of the X-ray source (5) and the X-ray detector (7) around the object (2), a number of 2D X-ray projection images (30) are acquired from different acquisition directions (6). A first panoramic tomographic image (1) is calculated from the acquired 2D X-ray projection images (30) using a reconstruction method, wherein the acquired 2D X-ray projection images (30) are modified using a modification method, wherein, from the modified 2D X-ray projection images (40, 50) and using the reconstruction method, a second panoramic tomographic image (11) is calculated with a higher weighting of artifacts (20) relative to anatomical structures (17, 18, 19), wherein a third panoramic tomographic image (60) with significantly reduced artifacts is calculated.
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