Mitigation of interplay effect in particle radiation therapy

A radiation therapy and particle technology, applied in radiation therapy, X-ray/γ-ray/particle irradiation therapy, treatment, etc., can solve the problem of not providing SBRT treatment

Active Publication Date: 2020-01-07
VARIAN MEDICAL SYST PARTICLE THERAPY GMBH & CO KG +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Therefore, many particle radiation therapy centers do not offer SBRT treatment at all

Method used

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  • Mitigation of interplay effect in particle radiation therapy
  • Mitigation of interplay effect in particle radiation therapy
  • Mitigation of interplay effect in particle radiation therapy

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Embodiment Construction

[0041] Reference will now be made in detail to the embodiments, examples of which are illustrated in the accompanying drawings. While the invention will be described in conjunction with these embodiments, it will be understood that they are not intended to limit the invention to these embodiments. On the contrary, the invention is intended to cover alternatives, modifications and equivalents, which may be included within the spirit and scope of the invention as defined by the appended claims. Furthermore, in the following detailed description, numerous specific details are set forth in order to provide a thorough understanding. However, it will be understood by those of ordinary skill in the art that the embodiments may be practiced without the use of these specific details.

[0042] Although the description will focus on proton radiation therapy and proton pencil beam scanning (PBS) therapy, the description is also applicable to particle radiation therapy using neutrons, ion...

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Abstract

The present disclosure relates to a new scan technique for particle radiation therapy that may be used for cancer treatment. One embodiment relates to a method of mitigating interplay effect in particle radiation therapy in a moving target including a period of movement, where the particle radiation therapy defines a planned dose in each spot of each layer of the moving target. The method comprising dividing the planned dose in each spot into a number of spot repaintings; and generating a scan pattern for each layer by defining a beam-on time at each spot for each spot repainting, and calculating a wait time between consecutive beam-on times to distribute the spot repaintings for each spot of a respective layer are distributed over a duration of an integer number of periods of movement.

Description

[0001] Cross References to Related Applications [0002] This application claims the benefit of and priority to U.S. Provisional Patent Application No. 62 / 445,008, filed January 11, 2017, which is hereby incorporated by reference in its entirety. technical field [0003] Embodiments relate to particle radiation therapy. More specifically, embodiments relate to scanning techniques for mitigating the effects of interactions in the delivery of particle radiation to a moving therapeutic target. Background technique [0004] Particle radiation therapy (also known as hadron therapy) is a form of external beam radiation therapy that uses beams of high-energy protons, ions, electrons, or electrons to treat cancer or other diseases. Furthermore, pencil beam scanning (PBS) therapy is a class of particle radiation therapy that generally allows for excellent three-dimensional (3D) shaping of high-dose radiation volumes to the shape of a treatment target such as a tumor. For particle P...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61N5/00
CPCA61N5/00A61N5/1043A61N5/1037A61N5/1044A61N2005/1087A61N5/1068A61N5/1039A61N5/1067A61N5/1075A61N2005/1089
Inventor P·R·鲍尔森J·埃利U·朗纳K·兰根
Owner VARIAN MEDICAL SYST PARTICLE THERAPY GMBH & CO KG
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