Invention Grant
US08280491B2 Image guided radiosurgery method and apparatus using registration of 2D radiographic images with digitally reconstructed radiographs of 3D scan data
有权
图像引导放射外科手术方法和装置，使用3D扫描数据的数字重建X射线照片的2D放射照相图像的配准
- Patent Title: Image guided radiosurgery method and apparatus using registration of 2D radiographic images with digitally reconstructed radiographs of 3D scan data
- Patent Title (中): 图像引导放射外科手术方法和装置，使用3D扫描数据的数字重建X射线照片的2D放射照相图像的配准
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Application No.: US12793621Application Date: 2010-06-03
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Publication No.: US08280491B2Publication Date: 2012-10-02
- Inventor: Gopinath Kuduvalli , Dongshan Fu , Shehrzad Qureshi
- Applicant: Gopinath Kuduvalli , Dongshan Fu , Shehrzad Qureshi
- Applicant Address: US CA Sunnyvale
- Assignee: Accuray Incorporated
- Current Assignee: Accuray Incorporated
- Current Assignee Address: US CA Sunnyvale
- Agency: Lowenstein Sandler PC
- Main IPC: A61B5/05
- IPC: A61B5/05
Abstract:
A set of 2D reconstructed images is generated from a pretreatment 3D scan showing an initial position of a target, wherein the set of 2D reconstructed images corresponds to perturbations from said initial position along fewer than six degrees of freedom. Said set of 2D reconstructed images are registered with one or more 2D x-ray images of said target showing a current position of the target, wherein the registering includes computing a set of 3D transformation parameters that represent a change in position of said target between said initial position of said pretreatment 3D scan and said current position of said 2D x-ray images along six degrees of freedom. A positioning system is instructed to adjust a relative position of a radiosurgical beam generator to said target by an amount prescribed by said 3D transformation parameters, wherein said target is allowed six degrees of freedom of position.
Public/Granted literature
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