发明名称 |
Patient positioning system |
摘要 |
A system includes acquisition of a three-dimensional computed tomography image of a patient volume at a computed tomography scanner, acquisition of projection images of the patient volume located at an isocenter of a linear accelerator, and determination of a transformation between a coordinate system of the linear accelerator and a coordinate system of the three-dimensional computed tomography image based on the projection images. |
申请公布号 |
US8861672(B2) |
申请公布日期 |
2014.10.14 |
申请号 |
US201113298189 |
申请日期 |
2011.11.16 |
申请人 |
Siemens Medical Solutions USA, Inc. |
发明人 |
Maltz Jonathan S.;Bose Supratik;Bani-Hashemi Ali;Paidi Ajay |
分类号 |
A61B6/03;A61B6/00;A61N5/10 |
主分类号 |
A61B6/03 |
代理机构 |
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代理人 |
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主权项 |
1. A method comprising:
acquiring a first three-dimensional computed tomography image of a patient volume at a computed tomography scanner; acquiring projection images of the patient volume located at an isocenter of a linear accelerator; determining a first transformation between a coordinate system of the linear accelerator and a coordinate system of the first three-dimensional computed tomography image based on the projection images; acquiring a second three-dimensional computed tomography image of the patient volume; identifying a treatment isocenter in the second three-dimensional computed tomography image; determining a second transformation between the coordinate system of the first three-dimensional computed tomography image and the coordinate system of the second three-dimensional computed tomography image; determining a first position of the linac isocenter in the first three-dimensional computed tomography image based on the first transformation; determining a second position of the treatment isocenter in the first three-dimensional computed tomography image based on the second transformation; and aligning the treatment isocenter in the patient volume with the linac isocenter based on the first position and the second position. |
地址 |
Malvern PA US |