Method and system for calculating dose of radiotherapy ray plane detector

A technology for calculating dose and detectors, applied in radiation therapy, X-ray/γ-ray/particle irradiation therapy, treatment, etc., which can solve the problems of high cost, lack of planar detectors, complex and cumbersome film calibration and scanning processes, etc.

Active Publication Date: 2020-07-14
宁波同调医学科技有限公司
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Problems solved by technology

In compound field verification (that is, each field does not rotate to 0 degrees, but is located in the original position set in the plan), physicists generally choose non-planar detectors with special designs (for example: ArcCHECK), so that Eliminate the influence of the field angle on the planar detector in design, but the cost is relatively expensive; or choose a high-precision film without angl

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  • Method and system for calculating dose of radiotherapy ray plane detector
  • Method and system for calculating dose of radiotherapy ray plane detector
  • Method and system for calculating dose of radiotherapy ray plane detector

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Embodiment Construction

[0054] Below in conjunction with the accompanying drawings, a set of terms is used to describe the preferred embodiments of the present invention in detail, so that those skilled in the art can easily understand the advantages and features of the present invention, so as to define the protection scope of the present invention more clearly.

[0055] The innovative concepts encompassed by the present invention have a variety of embodiments. Therefore, the detailed elaboration about the preferred embodiments here should not be used as the boundary of the claims of the present invention regarding the innovative concept, but the description here should be used to help those skilled in the art to understand the innovative concept included in the present invention . In addition, the size and relative size of the layers and parts of the objects in the schematic diagram will be appropriately deformed to avoid overlapping.

[0056] Here, the description object of a section of descripti...

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Abstract

The invention discloses a method for calculating dose of a radiotherapy ray plane detector and a matched system. The method comprises the content of calibrating parameters of a depth deviation model of a measurement plane; receiving a three-dimensional external irradiation treatment plan for a patient and a depth position of the measurement plane from a radiotherapy treatment planning system (TPS); calculating a depth deviation of the measurement plane of each beam according to a therapy apparatus head angle of the beam and the depth deviation model of the measurement plane; calculating a dosedistribution on the measurement plane after the depth position shifts according to the treatment plan and the depth deviation of each beam; superposing the dose distribution of each beam on the measurement plane after shifting, and generating the dose on the calibrated measurement plane of the detector.

Description

technical field [0001] The invention relates to a method for calculating the dose of a radiation detector, in particular to a method and system for calculating the dose of a radiotherapy ray plane detector. Background technique [0002] Contemporary radiotherapy techniques, such as intensity-modulated radiotherapy (IMRT) and volume-modulated radiotherapy (VMAT), need to control radiotherapy equipment to irradiate the patient's body containing tumor or cancer from different angles in a more complicated way, so that Improve the efficiency and safety of treatment while reducing the damage to surrounding human tissues. This makes radiotherapy planning increasingly complex and the importance of plan validation ever-increasing. [0003] When verifying the patient's radiotherapy plan, it is necessary to execute the corresponding verification plan on a specific water model, and use a radiotherapy ray detector to obtain the radiation dose absorbed at the specified location. The exp...

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Application Information

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IPC IPC(8): A61N5/10
CPCA61N5/1031A61N5/1048A61N5/1045A61N5/1071A61N5/1075A61N2005/1092A61N2005/1034
Inventor 不公告发明人
Owner 宁波同调医学科技有限公司
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