SYSTEM AND METHOD FOR ASSESSING THE PERFORMANCE OF A RADIOTHERAPY APPARATUS

    公开(公告)号:US20240139548A1

    公开(公告)日:2024-05-02

    申请号:US18550829

    申请日:2022-03-15

    申请人: Elekta Limited

    发明人: John Allen

    IPC分类号: A61N5/10

    摘要: Disclosed herein is a method for controlling a radiotherapy apparatus to perform quality assurance. The radiotherapy apparatus comprises a subject support surface, and a beam delivery device for delivering a planned radiation dose to a moving target region of a patient according to a plan, the plan comprising instructions for instructing the beam delivery device to adjust a positioning of a beam to compensate for motion of the target region. The method comprises receiving motion data, controlling movement of the subject support surface to simulate motion of the target region of the patient, based on the motion data, and controlling the beam delivery device to deliver radiation according to the plan while the subject support simulates motion of the target region.

    SYSTEMS AND METHODS OF ACCOUNTING FOR SHAPE CHANGE DURING RADIOTHERAPY

    公开(公告)号:US20180326223A1

    公开(公告)日:2018-11-15

    申请号:US15839381

    申请日:2017-12-12

    申请人: Elekta, Inc.

    发明人: Virgil WILLCUT

    IPC分类号: A61N5/10

    摘要: Embodiments of the disclosure may be directed to a system for generating a motion target volume representative of shape changes of a target region in a patient. The system may comprise at least one computer system configured to receive a plurality of electronic medical images that include the target region, and each of the plurality of images may have been taken at a different time point. The computer system may be configured to define a three-dimensional volume containing the target region in each of the plurality of images, and the three-dimensional volume may be different in at least two of the plurality of images due to differences in shape of the target region in the at least two images. The computer system may also be configured to co-register the three-dimensional volumes and generate the motion target volume, wherein the motion target volume encompasses each of the three-dimensional volumes.