| 发明名称 | Automatic correction method of couch-bending in sequence CBCT reconstruction | ||
| 摘要 | A method for correcting a volumetric image to address error due to deflection of a patient support is provided. The method includes obtaining a first set of projection data and a second set of projection data. The first and second sets of projection data are generated when the patient is at a first position and a second position, respectively, and are usable to reconstruct a first volumetric image and a second volumetric image, respectively. A corrected volumetric image is then determined based on the first and second sets of projection data. | ||
| 申请公布号 | US8983161(B2) | 申请公布日期 | 2015.03.17 |
| 申请号 | US201113292984 | 申请日期 | 2011.11.09 |
| 申请人 | Varian Medical Systems International AG | 发明人 | Berkus Timo;Quintus Katharina;Oelhanfen Markus;Kunz Patrik |
| 分类号 | G06K9/00;H05G1/28;G06T11/00;A61B6/00;A61B6/03 | 主分类号 | G06K9/00 |
| 代理机构 | Vista IP Law Group, LLP | 代理人 | Vista IP Law Group, LLP |
| 主权项 | 1. An imaging method, comprising: obtaining a first set of projection data, wherein the first set of projection data is generated when a patient support is at a first position; obtaining a second set of projection data, wherein the second set of projection data is generated when the patient support is at a second position; obtaining a topogram; determining a first volumetric image using the first set of projection data; determining a second volumetric image using the second set of projection data; and determining a corrected volumetric image based on the topogram, the first volumetric image that is determined using the first set of projection data, and the second volumetric image that is determined using the second set of projection data, to correct for deflection of the patient support. | ||
| 地址 | Zug CH | ||