Systems and methods for dynamic multileaf collimator tracking
AssigneeShanghai United Imaging Healthcare Co., Ltd.
InventorsZhonghua Shi, Wei Zhang, Can Liao, Cheng Ni
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Abstract
The present disclosure provides systems and methods for dynamic multileaf collimator (MLC) tracking. A method may include identifying a plurality of working leaves of the MLC at a control point; determining, for the control point, a signal acquisition region of an electronic portal imaging device (EPID) based on a plurality of planned position trajectories of the plurality of working leaves, wherein the signal acquisition region is part of an imaging plane of the EPID and includes a plurality of acquisition rows; and obtaining an image from the EPID at the control point, wherein the image includes information acquired in the signal acquisition region.
Claims20
A system for dynamic multileaf collimator (MLC) tracking, comprising:
- at least one storage device including a set of instructions for dynamic MLC tracking;
- and
- at least one processor in communication with the at least one storage device, wherein when executing the set of instructions, the at least one processor is directed to cause the system to perform operations including:
- identifying a plurality of working leaves of the MLC at a control point;
- determining, for the control point, a signal acquisition region of an electronic portal imaging device (EPID) based on a plurality of planned position trajectories of the plurality of working leaves, wherein the signal acquisition region is part of an imaging plane of the EPID and includes a plurality of acquisition rows, and one or more detectors of the EPID acquire signals from the signal acquisition region;
- and
- obtaining an image from the EPID at the control point, wherein the image includes information acquired in the signal acquisition region.
A method for dynamic multileaf collimator (MLC) tracking, implemented on a computing device having at least one processor and at least one computer-readable storage medium, the method comprising:
- identifying a plurality of working leaves of the MLC at a control point;
- determining, for the control point, a signal acquisition region of an electronic portal imaging device (EPID) based on a plurality of planned position trajectories of the plurality of working leaves, wherein the signal acquisition region is part of an imaging plane of the EPID and includes a plurality of acquisition rows, and one or more detectors of the EPID acquire signals from the signal acquisition region;
- and
- obtaining an image from the EPID at the control point, wherein the image includes information acquired in the signal acquisition region.
A non-transitory readable medium, comprising at least one set of instructions for dynamic multileaf collimator (MLC) tracking, wherein when executed by at least one processor of an electrical device, the at least one set of instructions directs the at least one processor to perform a method, the method comprising:
- identifying a plurality of working leaves of the MLC at a control point;
- determining, for the control point, a signal acquisition region of an electronic portal imaging device (EPID) based on a plurality of planned position trajectories of the plurality of working leaves, wherein the signal acquisition region is part of an imaging plane of the EPID and includes a plurality of acquisition rows, and one or more detectors of the EPID acquire signals from the signal acquisition region;
- and
- obtaining an image from the EPID at the control point, wherein the image includes information acquired in the signal acquisition region.
Dependencies are inferred from the claim text.