Invention Grant
- Patent Title: Systems, methods, and devices for radiation beam asymmetry measurements using electronic portal imaging devices
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Application No.: US17523544Application Date: 2021-11-10
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Publication No.: US11691031B2Publication Date: 2023-07-04
- Inventor: Reto Ansorge , Mathias Lehmann , Stefan J. Thieme-Marti
- Applicant: Siemens Healthineers International AG
- Applicant Address: CH Steinhausen
- Assignee: SIEMENS HEALTHINEERS INTERNATIONAL AG
- Current Assignee: SIEMENS HEALTHINEERS INTERNATIONAL AG
- Current Assignee Address: CH Steinhausen
- Agency: Potomac Law Group, PLLC
- Main IPC: A61N5/10
- IPC: A61N5/10 ; G01T1/29
Abstract:
Systems and methods for determining beam asymmetry in a radiation treatment system using electronic portal imaging devices (EPIDs) without implementation of elaborate and complex EPID calibration procedures. The beam asymmetry is determined based on radiation scattered from different points in the radiation beam and measured with the same region of interest ROI of the EPID.
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